Solid-state particulate matter energy storage and heat storage, air heating and waste heat recovery equipment

Abstract

The utility model discloses a kind of solid-state particulate energy storage and heat storage, air heating and waste heat recovery equipment, it is related to air heating technical field, including thermostatic heating tank and heat storage equipment, heat storage equipment includes main casing, heating element and heat exchange mechanism, main casing is filled with particulate heat storage, heating element is heated to particulate heat storage;Heat exchange mechanism includes heat exchange pipeline, import main pipe and export main pipe, import main pipe is set to the bottom side of main casing, and is connected with air inlet pipe, export main pipe is set to the top side of main casing;The bottom of heat exchange pipeline is communicated with import main pipe, and the top is communicated with export main pipe;Export main pipe is connected with air outlet pipe, and the air inlet of thermostatic heating tank is connected, for the heated air into thermostatic heating tank, heat-absorbing material is heated;The air outlet of thermostatic heating tank is communicated with import main pipe by reflux pipe.The utility model can reduce production cost, and realize the full recycling of heat, and it is suitable for use.

Description

Technical Field

[0001] This utility model relates to the field of air heating technology, and in particular to a solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment. Background Technology

[0002] In metal processing, such as the processing of aluminum bars, air heating is usually required to achieve tempering or preheating; however, existing air heating equipment usually heats the air directly through electric heating elements such as resistance heating tubes or infrared heating tubes, which has high production costs and cannot make full use of off-peak electricity.

[0003] Therefore, a solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment is provided to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0004] The purpose of this invention is to provide a solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment to solve the problems existing in the prior art, reduce production costs and achieve full recovery and utilization of heat, and is suitable for widespread use.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment, including:

[0007] A constant temperature heating chamber, wherein heat-absorbing materials are placed inside the constant temperature heating chamber;

[0008] A thermal storage device includes a main shell, heating elements, and a heat exchange mechanism. The main shell is filled with granular thermal storage material, and the heating elements are disposed within the granular thermal storage material to heat it. The heat exchange mechanism includes heat exchange pipes, an inlet main pipe, and an outlet main pipe. The inlet main pipe is located on one side of the bottom of the granular thermal storage material and is connected to an air inlet pipe for introducing air. The outlet main pipe is located on one side of the top of the granular thermal storage material. Multiple heat exchange pipes are disposed within the granular thermal storage material, and the bottom of all heat exchange pipes is connected to the inlet main pipe, and the top of all heat exchange pipes is connected to the outlet main pipe. The outlet main pipe is also connected to an air outlet pipe, which is connected to the air inlet of a constant temperature heating chamber to introduce heated air into the constant temperature heating chamber to heat the heat-absorbing material. The air outlet of the constant temperature heating chamber is connected to the inlet main pipe through a return pipe.

[0009] Preferably, the granular heat storage material is further provided with a heating tube, and the heating element is disposed inside the heating tube;

[0010] The heating tubes are evenly distributed in multiple locations, and each heating tube contains a heating element. The heating element is connected to a three-phase power supply in a star configuration or in a delta configuration.

[0011] Preferably, the heating element is a resistance heating element; wherein the heating element can be connected to mains power to utilize off-peak electricity for heating, and / or the heating element is also connected to a wind power generation device and / or a solar power generation device.

[0012] Preferably, the heating element is connected to a three-phase power supply in a star configuration, or the heating element is connected to a delta configuration.

[0013] Preferably, it further includes a temperature sensor disposed within the particulate heat storage material for detecting the temperature of the particulate heat storage material; wherein, the temperature sensor is also signal-connected to an intelligent controller, the intelligent controller is signal-connected to the heating element, and the temperature sensor can transmit the detected temperature data to the intelligent controller, the intelligent controller controlling the operation of the heating element according to the temperature data.

[0014] Preferably, the main housing is further provided with multiple vertical partitions from front to back, and the vertical partitions are provided with multiple material passage holes to allow the granular heat storage material to pass through;

[0015] The adjacent vertical partitions, the frontmost vertical partition and the front end plate of the main housing, and the rearmost vertical partition and the rear end plate of the main housing are all connected by multiple tie rods.

[0016] Preferably, the particulate heat storage material includes basalt particles, quartz sand, kaolinite particles, and magnesium oxide particles.

[0017] Preferably, the system further includes a circulating air system, which comprises a circulating fan, a ventilation box, and an air outlet duct. The ventilation box is located inside the main housing, with an air inlet on one side for air intake and the other side connected to the air outlet duct. The air outlet duct extends into the granular heat storage material and has an air outlet. The air outlet duct includes a main air outlet pipe and branch air outlet pipes. The main air outlet pipe is horizontally arranged and one end is connected to the ventilation box. Multiple vertically arranged branch air outlet pipes are connected to both the upper and lower sides of the main air outlet pipe, and multiple air outlets are provided on each branch air outlet pipe.

[0018] The circulating fan includes a motor and fan blades. The fan blades are located inside the ventilation box. The motor is fixed to the outside of the main housing, and the output shaft of the motor extends into the ventilation box and is connected to the fan blades. The motor drives the fan blades to rotate, which enables the air intake of the air inlet and the air outlet of the air outlet pipe.

[0019] Preferably, the air inlet pipe is equipped with an air intake power device, the air outlet pipe is equipped with an air outlet power device, and the return pipe is equipped with a return power device.

[0020] Preferably, the constant temperature heating chamber also has a constant temperature system, which includes a temperature sensor for detecting the temperature inside the constant temperature heating chamber. The temperature sensor is also connected to an intelligent controller, which is connected to the intake power device, the exhaust power device, and the return power device. The temperature sensor can transmit the detected temperature data to the intelligent controller, which controls the intake power device, the exhaust power device, and the return power device to operate based on the temperature data.

[0021] The present invention achieves the following technical advantages over the prior art:

[0022] This utility model discloses a solid particulate matter energy storage and heat storage, air heating, and waste heat recovery equipment, including a constant temperature heating chamber. The constant temperature heating chamber contains heat-absorbing material: a heat storage device. The heat storage device includes a main shell, heating elements, and a heat exchange mechanism. The main shell is filled with particulate heat storage material, and the heating elements are disposed within the particulate heat storage material for heating it. The heat exchange mechanism includes heat exchange pipelines, an inlet main pipe, and an outlet main pipe. The inlet main pipe is located on one side of the bottom of the main shell and is connected to... An air inlet pipe is used to introduce air; the outlet main pipe is located on the top side of the main shell; multiple heat exchange pipes are provided inside the granular heat storage material, and the bottom of all the heat exchange pipes are connected to the inlet main pipe, and the top of all the heat exchange pipes are connected to the outlet main pipe; the outlet main pipe is also connected to an air outlet pipe, which is connected to the air inlet of the constant temperature heating box, for introducing heated air into the constant temperature heating box to heat the heat-absorbing material; the air outlet of the constant temperature heating box is connected to the inlet main pipe through a return pipe.

[0023] This invention utilizes off-peak or green electricity to heat granular heat storage materials via heating elements, storing thermal energy within the granular materials. Air is then introduced into the inlet main pipe through an air inlet pipe, and subsequently enters the heat exchange pipeline to absorb the heat energy from the granular materials. The resulting hot air enters the outlet main pipe and is then circulated into the constant-temperature heating chamber through an air outlet pipe to heat the heat-absorbing material. This invention fully utilizes off-peak or green electricity through its heat storage device, reducing the production cost of hot air. Furthermore, the outlet of the constant-temperature heating chamber is connected to the inlet main pipe via a return pipe, allowing the high-temperature exhaust gas generated by the constant-temperature heating chamber to return to the inlet main pipe, achieving full recovery and utilization of waste heat. This invention is suitable for widespread application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the heat storage device in the embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the circulating air system in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the circulating fan in an embodiment of this utility model.

[0028] In the diagram: 100-Heat storage equipment, 1-Main shell, 2-Heat exchange pipeline, 3-Outlet main pipe, 4-Inlet main pipe, 5-Air outlet pipe, 6-Air inlet pipe, 7-Temperature sensor, 8-Heating pipe, 9-Circulating air system, 901-Motor, 902-Ventilation box, 903-Air inlet, 904-Outlet main pipe, 905-Outlet branch pipe, 906-Air outlet, 907-Fan blade, 10-Vertical partition, 11-Return pipe, 12-Return power equipment, 13-Constant temperature heating box, 14-Inlet power equipment, 15-Outlet power equipment. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] The purpose of this invention is to provide a solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment to solve the problems existing in the prior art, reduce production costs and be suitable for widespread use.

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figures 1-3 As shown, this embodiment provides a solid particulate matter energy storage and thermal storage, air heating and waste heat recovery equipment, mainly including:

[0034] A constant temperature heating chamber 13 is used to place heat-absorbing materials inside. The heat-absorbing materials can be selected according to specific working needs. For example, they can be metal materials such as aluminum rods, or non-metallic materials can be selected.

[0035] A thermal storage device 100 includes a main shell 1, a heating element, and a heat exchange mechanism. The main shell 1 is filled with granular thermal storage material, and the heating element is disposed within the granular thermal storage material for heating it. The heat exchange mechanism includes a heat exchange pipeline 2, an inlet main pipe 4, and an outlet main pipe 3. The inlet main pipe 4 is located on one side of the bottom of the main shell 1 and is connected to an air inlet pipe 6 for introducing air. The outlet main pipe 3 is located on the main shell 1. On the top side, the granular heat storage material is provided with multiple heat exchange pipes 2, and the bottom of all the heat exchange pipes 2 are connected to the inlet main pipe 4, and the top of all the heat exchange pipes 2 are connected to the outlet main pipe 3; the outlet main pipe 3 is also connected to an air outlet pipe 5, which is connected to the air inlet of the constant temperature heating box 13, and is used to introduce heated air into the constant temperature heating box 13 to heat the heat-absorbing material; the air outlet of the constant temperature heating box 13 is connected to the inlet main pipe 4 through a return pipe 11.

[0036] In this embodiment, off-peak electricity or green electricity is used to heat the granular heat storage material through a heating element, which can store heat energy in the granular heat storage material. Then, air is added into the inlet main pipe 4 through the air inlet pipe 6, and then enters the heat exchange pipe 2 to absorb the heat energy of the granular heat storage material. The generated hot air enters the outlet main pipe 3 and is introduced into the constant temperature heating box 13 through the air outlet pipe 5 to heat the heat-absorbing material. In this embodiment, the heat storage device 100 can make full use of off-peak electricity or green electricity, reducing the production cost of hot air. Moreover, the air outlet of the constant temperature heating box 13 is connected to the inlet main pipe 4 through the return pipe 11, and the high-temperature exhaust gas generated by the constant temperature heating box 13 can flow back into the inlet main pipe 4, realizing the full recovery and utilization of waste heat, which is suitable for widespread application.

[0037] In this embodiment, a heating tube 8 is also provided inside the granular heat storage material, and the heating element is disposed inside the heating tube 8. The heating tube 8 can effectively protect the heating element while ensuring heating. The heating tube 8 can be a non-metallic tube such as a ceramic tube.

[0038] Furthermore, in this embodiment, multiple heating tubes 8 are evenly distributed, and each heating tube 8 penetrates the granular heat storage material in a horizontal direction. Each heating tube 8 is equipped with a heating element. Through the evenly distributed multiple heating tubes 8 and the heating elements inside them, different positions of the granular heat storage material can be heated, thereby achieving comprehensive heating of the granular heat storage material and improving the heating effect.

[0039] In a preferred embodiment, the multiple heating tubes 8 can be arranged in an array, for example, in a rectangular array, or in a circular array, or other arrangements can be selected, such as the multiple heating tubes 8 being arranged in a crisscross pattern, or in a surrounding or spiral arrangement.

[0040] In this embodiment, the heating element is preferably a resistance heating element, such as a resistance heating wire, which can extend into the heating tube 8 to heat the particulate heat storage material. The resistance heating wire is preferably a spiral heating wire to improve the heating effect. The heating element can be connected to mains power to utilize off-peak electricity for heating, reducing electricity costs. Alternatively, the heating element can be directly connected to wind power generation devices and solar power generation devices without the need for an inverter, utilizing wind or solar power for power generation. It should be noted that the wind power generation devices and solar power generation devices are mature existing technologies in the art, and will not be described in detail in this embodiment.

[0041] In this embodiment, the heating element is preferably connected in a three-phase star configuration. With this configuration, when the three-phase load is perfectly symmetrical (all heating elements have the same resistance), the neutral current is zero, ensuring balanced three-phase current and preventing excess current from returning to the grid. When using off-peak electricity for heating, the balanced load prevents three-phase imbalance in the grid, avoiding additional line losses, reduced transformer efficiency, and adverse effects on other electrical equipment caused by imbalance, thus meeting the requirements of the power grid company. When using wind power, the three-phase wind turbine itself outputs three-phase electricity. Connecting it to a balanced three-phase load can make the three-phase wind turbine run more smoothly, reducing vibration and torque fluctuations, and improving power generation efficiency and equipment lifespan. Solar power generation devices also benefit from balanced loads.

[0042] Moreover, the standard industrial three-phase voltage (line voltage) is 380V. When a three-phase power supply is connected in a star configuration, the actual voltage that each heating element bears is the phase voltage of 220V (380V / √3≈220V). This allows the rated voltage of a single heating element to be designed to the common 220V level, making it easy to manufacture, technologically mature, and cost-effective.

[0043] Alternatively, the heating element 111 can be connected in other ways as needed, such as a delta connection.

[0044] In this embodiment, a temperature sensor 7 is also included. The temperature sensor 7 is disposed within the particulate heat storage material and is used to detect the temperature of the particulate heat storage material. The temperature sensor 7 is also signal-connected to an intelligent controller, which is signal-connected to the heating element. The temperature sensor 7 can transmit the detected temperature data to the intelligent controller, and the intelligent controller controls the operation of the heating element based on the temperature data. Specifically, when the temperature sensor 7 detects that the temperature of the particulate heat storage material reaches a preset temperature, the intelligent controller controls the heating element to shut down, stopping heating to prevent damage to the heating element due to excessively high heating temperatures. The preset temperature can be 500-600℃.

[0045] The temperature sensors 7 can be arranged in multiple ways from front to back to detect the temperature at different locations.

[0046] In this embodiment, the heat exchange pipe 2 is preferably an S-shaped curved pipe, which is formed by connecting multiple S-shaped pipes from bottom to top to increase the travel of the heat exchange medium (air) within the granular heat storage material and improve the heat exchange effect. Furthermore, the heat exchange pipe 2 can also be a finned pipe, that is, heat exchange fins are also sleeved on the outside of the heat exchange pipe 2 (on the outside of each straight segment when it is an S-shaped curved pipe) to increase the heat exchange area and improve the heat exchange effect. The heat exchange fins are only sleeved on the outside of the heat exchange pipe 2 and are not fixed to the heat exchange pipe 2, or only at both ends are fixed to the heat exchange pipe 2, so that when the heat exchange pipe 2 expands, it can detach from the heat exchange fins so that it can slide relative to the granular heat storage material.

[0047] In this embodiment, the intelligent controller can be selected as needed, for example, it can be a PLC controller, and the intelligent controller can be connected to a control panel, which can be operated by the staff.

[0048] In this embodiment, the main housing 1 is further provided with multiple vertical partitions 10 arranged from front to back. The vertical partitions 10 are perpendicular to the length direction of the main housing 1, and multiple material passage holes are opened on the vertical partitions 10 to allow the granular heat storage material to pass through. By setting multiple vertical partitions 10, the overall stability of the structure can be improved. Among them, adjacent vertical partitions 10, the frontmost vertical partition 10 and the front end plate of the main housing 1, and the rearmost vertical partition 10 and the rear end plate of the main housing 1 are all connected by multiple tie rods, which can form a stable internal skeleton structure, prevent the vertical partitions 10 from tilting, deforming or shifting, and prevent the internal material from squeezing the main housing 1, causing it to deform or even crack.

[0049] In this embodiment, the particulate heat storage material may include basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, etc. In this embodiment, basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, etc. are used as the main raw materials. They have high specific heat capacity and low cost. While ensuring the heat storage effect, the overall cost can be reduced. Moreover, the above-mentioned heat storage materials have high melting points and can withstand high heating temperatures to heat the heat exchange medium in the heat exchange pipeline 2.

[0050] Alternatively, other materials with high specific heat capacity and low cost can be selected as heat storage materials as needed.

[0051] In this embodiment, a circulating air system 9 is also included. The circulating air system 9 includes a circulating fan, a ventilation box 902, and an air outlet pipe. The ventilation box 902 is located inside the main housing 1. An air inlet 903 is provided on one side for air intake, and the other side is connected to the air outlet pipe. The air outlet pipe extends into the granular heat storage material and is provided with an air outlet 906.

[0052] The air outlet pipe includes a main air outlet pipe 904 and a branch air outlet pipe 905. The main air outlet pipe 904 is horizontally arranged and one end is connected to the ventilation box 902. Multiple vertically arranged branch air outlet pipes 905 are connected to the upper and lower sides of the main air outlet pipe 904. Multiple air outlets 906 are opened on any branch air outlet pipe 905.

[0053] The circulating fan includes a motor 901 and a fan blade 907. The fan blade 907 is located inside the ventilation box 902. The motor 901 is fixed to the outside of the main housing 1, and the output shaft of the motor 901 extends into the ventilation box 902 and is connected to the fan blade 907. The motor 901 drives the fan blade 907 to rotate, which enables the air intake of the ventilation box 902 and the air outlet of the air outlet pipe, realizing the circulation of hot air inside the outer main housing 1 and improving the heat exchange effect. It can also prevent cold air from entering the main housing 1 or hot air from being discharged from the main housing 1, reducing heat loss.

[0054] In this embodiment, the outer side of the main shell 1 is also wrapped with a heat insulation layer for heat preservation and to reduce heat loss; wherein, the heat insulation layer can be selected according to specific working needs, such as ceramic fiber cotton or rock wool board.

[0055] In this embodiment, an intake power device 14 is provided on the air inlet pipe 6, an outlet power device 15 is provided on the air outlet pipe 5, and a return power device 12 is provided on the return pipe 11. The intake power device 14, the outlet power device 15, and the return power device 12 can be selected according to specific operational needs, for example, they can be fans. Furthermore, both the air inlet pipe 6 and the air outlet pipe 5 are equipped with a switch valve, preferably an electrically controlled valve, to control the switch. The return pipe 11 is equipped with a check valve, which allows the air from the constant temperature heating chamber to return to the inlet main pipe 4 through the return pipe 11, and prevents the gas in the inlet main pipe 4 from directly entering the constant temperature heating chamber 13 without heating through the return pipe 11.

[0056] In this embodiment, the constant temperature heating chamber 13 further includes a constant temperature system, which includes a temperature sensor 7. The temperature sensor 7 is used to detect the temperature inside the constant temperature heating chamber 13. The temperature sensor 7 is also connected to an intelligent controller, which is connected to the intake power device 14, the exhaust power device 15, and the return power device 12. The temperature sensor 7 can transmit the detected temperature data to the intelligent controller, which controls the intake power device 14, the exhaust power device 15, and the return power device 12 to operate based on the temperature data. Specifically, when the temperature... When the temperature sensor 7 detects that the temperature inside the constant temperature heating chamber 13 is lower than the set temperature value, the intelligent controller controls the air outlet power device 15 to work and automatically introduce air. At the same time, the return power device 12 works synchronously to allow the hot air inside the constant temperature heating chamber 13 to return to the inlet main pipe 4. At this time, the hot air can enter the inlet main pipe 4 through the return pipe 11, then enter the main housing 1 for reheating, and finally enter the constant temperature heating chamber 13 through the air outlet pipe 5, realizing an energy-saving circuit. The air inlet pipe 6 can be selected to introduce air or not introduce air as needed. When the temperature inside the constant temperature heating chamber 13 reaches the set temperature value, the air supply is stopped.

[0057] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment, characterized in that: include: A constant temperature heating chamber (13) is used to place heat-absorbing materials inside the constant temperature heating chamber (13); A heat storage device (100) includes a main shell (1), a heating element, and a heat exchange mechanism. The main shell (1) is filled with granular heat storage material, and the heating element is disposed inside the granular heat storage material for heating the granular heat storage material. The heat exchange mechanism includes a heat exchange pipeline (2), an inlet main pipe (4), and an outlet main pipe (3). The inlet main pipe (4) is disposed on one side of the bottom of the main shell (1), and the inlet main pipe (4) is connected to an air inlet pipe (6) for introducing air. The outlet main pipe (3) is disposed on the main shell (1). On the top side of the granular heat storage material, there are multiple heat exchange pipes (2), and the bottom of all the heat exchange pipes (2) are connected to the inlet main pipe (4), and the top of all the heat exchange pipes (2) are connected to the outlet main pipe (3); the outlet main pipe (3) is also connected to an air outlet pipe (5), which is connected to the air inlet of the constant temperature heating box (13) to introduce heated air into the constant temperature heating box (13) to heat the heat absorption material; the air outlet of the constant temperature heating box (13) is connected to the inlet main pipe (4) through a return pipe (11).

2. The solid particulate matter energy storage and thermal storage, air heating and waste heat recovery equipment according to claim 1, characterized in that: The granular heat storage material is also provided with a heating tube (8), and the heating element is disposed inside the heating tube (8).

3. The solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment according to claim 2, characterized in that: The heating tubes (8) are evenly distributed in multiples, and each heating tube (8) is equipped with a heating element. The heating element is connected to the power supply in a three-phase star connection or in a delta connection.

4. The solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment according to claim 3, characterized in that: The heating element is a resistance heating element; wherein the heating element can be connected to mains power to use off-peak electricity for heating, and / or the heating element is also connected to a wind power generation device and / or a solar power generation device.

5. The solid particulate matter energy storage and thermal storage, air heating and waste heat recovery equipment according to any one of claims 1-4, characterized in that: It also includes a temperature sensor (7), which is disposed inside the particulate heat storage material and is used to detect the temperature of the particulate heat storage material; wherein, the temperature sensor (7) is also connected to the intelligent controller, the intelligent controller is connected to the heating element, and the temperature sensor (7) can transmit the detected temperature data to the intelligent controller, and the intelligent controller controls the operation of the heating element according to the temperature data.

6. The solid particulate matter energy storage and thermal storage, air heating and waste heat recovery equipment according to claim 1, characterized in that: The main housing (1) is also provided with multiple vertical partitions (10) from front to back, and the vertical partitions (10) are provided with multiple material passage holes, which can allow the granular heat storage material to pass through; Among them, the adjacent vertical partitions (10), the frontmost vertical partition (10) and the front end plate of the main shell (1), and the rearmost vertical partition (10) and the rear end plate of the main shell (1) are all connected by multiple tie rods.

7. The solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment according to claim 1, characterized in that: It also includes a circulating air system (9), which includes a circulating fan, a ventilation box (902), and an air outlet pipe. The ventilation box (902) is located inside the main shell (1), with an air inlet (903) on one side for air intake and the other side connected to the air outlet pipe. The air outlet pipe extends into the granular heat storage material and has an air outlet (906). The air outlet pipe includes a main air outlet pipe (904) and branch air outlet pipes (905). The main air outlet pipe (904) is horizontally arranged and one end is connected to the ventilation box (902). Multiple vertically arranged branch air outlet pipes (905) are connected to both the upper and lower sides of the main air outlet pipe (904). Multiple air outlets (906) are opened on any one of the branch air outlet pipes (905). The circulating fan includes a motor (901) and a fan blade (907). The fan blade (907) is located inside the ventilation box (902). The motor (901) is fixed to the outside of the main housing (1), and the output shaft of the motor (901) extends into the ventilation box (902) and is connected to the fan blade (907). By driving the fan blade (907) to rotate through the motor (901), air can be introduced into the air inlet (903) and air can be discharged from the air outlet pipe.

8. The solid particulate matter energy storage and thermal storage, air heating and waste heat recovery equipment according to claim 1, characterized in that: An air intake power device (14) is provided on the air inlet pipe (6), an air outlet power device (15) is provided on the air outlet pipe (5), and a return power device (12) is provided on the return pipe (11).

9. The solid particulate matter energy storage and heat storage, air heating and waste heat recovery equipment according to claim 8, characterized in that: The constant temperature heating chamber (13) also has a constant temperature system, which includes a temperature sensor (7). The temperature sensor (7) is used to detect the temperature inside the constant temperature heating chamber (13). The temperature sensor (7) is also connected to an intelligent controller. The intelligent controller is connected to the intake power device (14), the exhaust power device (15), and the return power device (12). The temperature sensor (7) can transmit the detected temperature data to the intelligent controller. The intelligent controller controls the intake power device (14), the exhaust power device (15), and the return power device (12) to work according to the temperature data.

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