A waste heat recovery power generation device for high-temperature blast furnace slag particles

Abstract

This invention discloses a waste heat recovery and power generation device for high-temperature blast furnace slag particles, relating to the field of blast furnace slag waste heat utilization technology. It includes a purification tank and a purification module. A feed inlet is installed on the left side of the outer wall of the purification tank. The purification module is connected to a controller installed on the front side of the outer wall of the granulation tank via a signal line. The purification module includes a nozzle, a storage tank, a weight sensor, a stirring rod, and a purification motor. This invention, by installing the purification module, achieves the function of uniformizing the properties of high-temperature blast furnace slag, solving problems such as slag particle adhesion, poor granulation uniformity, equipment corrosion, and environmental pollution. It can optimize the physical properties of slag particles, reduce the viscosity and surface tension of high-temperature blast furnace slag, avoid material damage caused by localized overheating, and extend the service life of the equipment.

Description

Technical Field

[0001] This invention relates to the field of blast furnace slag waste heat utilization technology, specifically to a waste heat recovery and power generation device for high-temperature blast furnace slag particles. Background Technology

[0002] As a high-energy-consuming industry, the steel industry has long faced a gap in the recovery of waste heat from high-temperature slag. The output temperature of blast furnace slag reaches 1450℃~1500℃, and each ton of slag contains as much as 1770 megajoules of heat. However, there is a lack of efficient recovery methods, and this part of sensible heat resources has been wasted for a long time. Due to the many limitations of traditional water quenching methods, such as large water consumption, no waste heat recovery, and pollution emissions, with the breakthrough of technology, dry granulation has replaced water quenching methods. Through centrifugal granulation, moving bulk bed heat exchange, and dual-pressure steam system, the waste heat of blast furnace slag is recovered and utilized, which improves the resource utilization rate.

[0003] The presence of calcium oxide and ferrous oxide in high-temperature blast furnace slag can cause uneven particle size distribution during granulation, thereby reducing heat exchange efficiency. The performance of the slag particles may deteriorate during subsequent utilization. In addition, the temperature difference of high-temperature blast furnace slag can also lead to uneven particle size distribution during granulation, and even local overheating of the equipment.

[0004] Patent CN108998604B discloses a device for blast furnace slag granulation and waste heat recovery. The above patent realizes that a slag film will be formed at the edge of the rotating slag pan. The heating component heats and keeps the blast furnace slag at the edge of the rotating slag pan at a high temperature, inhibiting the formation of the slag film and helping to reduce the particle size of the granulated slag.

[0005] The aforementioned patent uses heating components to heat and keep the blast furnace slag in the rotating slag pan, thereby improving the fluidity of the blast furnace slag and reducing its viscosity coefficient. This reduces the viscosity between the blast furnace slag and the rotating slag pan, preventing the formation of excessive slag film between the blast furnace slag and the rotating slag pan, and thus provides room for optimization in the pretreatment of high-temperature slag.

[0006] Therefore, this application proposes a waste heat recovery power generation device for high-temperature blast furnace slag particles with uniform high-temperature blast furnace slag properties. Summary of the Invention

[0007] The purpose of this invention is to provide a waste heat recovery power generation device for high-temperature blast furnace slag particles, so as to solve the technical problems of removing corrosive substances and controlling temperature in high-temperature blast furnace slag mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a waste heat recovery power generation device for high-temperature blast furnace slag particles, comprising a purification box and a purification module, wherein a feed inlet is installed on the left side of the outer wall of the purification box, and the purification module is connected to a controller installed on the front side of the outer wall of the granulation box via a signal line;

[0009] The purification module includes: a nozzle, a storage tank, a weight sensor, a stirring rod, and a purification motor;

[0010] A storage bin is installed on the upper side of the outer wall of the purification chamber, and a nozzle is installed on the upper side of the inner wall of the purification chamber. The nozzle is connected to the storage bin through a first connecting valve. A purification motor is installed on the lower side of the inner wall of the purification chamber. An adapter is installed at the output end of the purification motor. The adapter is connected to the nozzle and the stirring rod installed on the lower side of the inner wall of the purification chamber through a connecting shaft. A weight sensor is installed in the middle of the outer wall of the purification motor. The weight sensor and the purification motor are connected to the controller through signal lines.

[0011] A recovery pipe is installed on the rear side of the outer wall of the purification box. The recovery pipe is connected to the purification box and the granulation box respectively. A second connecting valve is installed at the connection between the recovery pipe and the purification box and the granulation box. The recovery pipe is connected to the heating chamber through a third connecting valve. The heat replenishment component is connected to the temperature sensor through a signal line.

[0012] The heating components include: a microwave transmitter, a heating chamber, a conveyor belt, a temperature sensor, and a feeding valve;

[0013] A heating chamber is installed on the right side of the outer wall of the purification chamber. Feeding valves are installed on the left and right sides of the outer wall of the heating chamber. The heating chamber is connected to the purification chamber through the feeding valves.

[0014] A discharge port is installed on the right side of the outer wall of the heating chamber, and the right side of the outer wall of the discharge port is connected to the granulation box. The granulation module includes: granulation box, centrifugal crushing unit, cooling pipe, granulation motor and wind power component;

[0015] A granulation box is installed on the right side of the outer wall of the discharge port. A cooling pipe is installed in the interlayer of the granulation box. A centrifugal crushing unit is installed in the middle of the inner wall of the granulation box. The centrifugal crushing unit is connected to the granulation motor through a connecting shaft. A granulation motor is installed in the middle of the rear side of the outer wall of the granulation box. The granulation motor is connected to the controller through a signal line. A wind power component is installed on the inner wall of the granulation box.

[0016] The cooling pipe is connected to the circulating pump via a connecting pipe, and the input end of the circulating pump is connected to the water tank via a connecting pipe. A circulation module is installed on the rear side of the outer wall of the granulation box. The circulation module includes: a water tank, a circulating pump, a regulating valve, and a heat exchange box.

[0017] A water tank is installed on the rear side of the outer wall of the granulation box. A circulation pump is installed on the upper side of the outer wall of the water tank. A heat exchange box is installed on the rear side of the outer wall of the circulation pump. A regulating valve is installed on the lower side of the outer wall of the circulation pump. The circulation pump is connected to the water tank and the heat exchange box through the regulating valve. The output end of the cooling pipe is connected to the upper side of the outer wall of the heat exchange box, and the input end of the cooling pipe is connected to the lower side of the outer wall of the heat exchange box. The output end of the water tank is connected to the lower side of the outer wall of the heat exchange box, and the input end of the water tank is connected to the absorption heat pump through the return pipe.

[0018] Preferably, the output end of the recovery pipe is connected to the power generation module via a fourth connecting valve;

[0019] A heat exchanger is installed on the lower side of the outer wall of the purification chamber. The heat exchanger is connected to the recovery pipe and the heat exchange box through connecting pipes. A power generation unit is installed on the lower side of the outer wall of the heat exchanger. An absorption heat pump is installed on the lower side of the outer wall of the power generation unit. The absorption heat pump is connected to the power generation unit through connecting pipes. The absorption heat pump is connected to the water tank installed on the upper side of the outer wall of the compressor through a return pipe. A return pipe is installed on the rear side of the outer wall of the absorption heat pump.

[0020] Preferably, a base plate is installed on the upper side of the outer wall of the purification motor, and a lifting assembly is installed on the lower side of the outer wall of the base plate. The lifting assembly is connected to the adapter through a lifting rod. The lifting assembly includes: a sealing ring, a lifting rod, a rotating shaft, and a fixing device.

[0021] A lifting rod is installed on the left side of the outer wall of the purification box, a rotating shaft is installed in the middle of the lower side of the outer wall of the bottom plate, and sealing rings are installed around the lower side of the outer wall of the bottom plate. The lifting rod and the rotating shaft are connected by a fixture installed on the lower side of the outer wall of the bottom plate.

[0022] Preferably, a pressure pump is provided on the rear side of the outer wall of the water tank. The pressure pump is connected to a mixing tank installed on the upper side of the outer wall of the nozzle via a connecting pipe. The pressure pump includes: a push rod, a balance pipe, a piston, a water valve, and a cavity.

[0023] A water valve is installed on the lower side of the outer wall of the storage box. A cavity is installed on the lower side of the outer wall of the water valve. A piston is installed on the left side of the outer wall of the cavity. A push rod is installed on the left side of the outer wall of the piston. The push rod is connected to the purification motor through a connecting shaft. Balance tubes are installed on the upper and lower sides of the outer wall of the piston.

[0024] Preferably, the feeding valve is connected to the controller via a signal line, microwave transmitters are installed on the front and rear sides of the heating chamber, a conveyor belt is installed on the lower part of the inner wall of the heating chamber, the conveyor belt is connected to the adapter via a connecting shaft, and temperature sensors are installed on the left and right sides of the outer wall of the heating chamber. The temperature sensors are connected to the microwave transmitters and the controller via signal lines.

[0025] Preferably, the wind power component includes: an air inlet, an air outlet, a vacuum pump, a filter, and a compressor;

[0026] An air outlet is installed on the upper side of the outer wall of the granulation chamber, and a filter screen is installed on the upper side of the outer wall of the air outlet. The air outlet is connected to a vacuum pump installed on the upper side of the outer wall of the granulation chamber through a connecting pipe. The connecting pipe connecting the air outlet and the vacuum pump is connected to a recovery pipe through a second connecting valve. An air inlet is provided on the lower side of the inner wall of the granulation chamber. The air inlet is connected to a compressor installed on the rear side of the outer wall of the granulation chamber through a connecting pipe. The vacuum pump and the compressor are connected to the granulation motor through a connecting shaft.

[0027] Preferably, a recovery valve is installed in the middle of the outer wall of the granulation box, and a recovery box is installed on the right side of the outer wall of the recovery valve.

[0028] Preferably, pressure sensors are installed in the middle of the inner walls of both the granulation box and the heat exchange box, and the pressure sensors are connected to the controller via signal lines.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. This invention, by installing a purification module, achieves the function of unifying the properties of high-temperature blast furnace slag, solving the problems of slag particle adhesion, poor granulation uniformity, equipment corrosion and environmental pollution. It can optimize the physical properties of slag particles, reduce the viscosity and surface tension of high-temperature blast furnace slag, avoid material damage caused by local overheating, and extend the service life of equipment.

[0031] 2. This invention achieves efficient waste heat recovery by installing a granulation module, solving the problems of low waste heat utilization, environmental pollution, poor slag particle uniformity, and high energy consumption. It can inhibit the excessive growth of silicate crystals in the slag, reduce the energy consumption of crushing high-temperature blast furnace slag, suppress the overflow of high-temperature gas, and improve the heat exchange efficiency of the device.

[0032] 3. This invention, by installing a recovery pipe, connecting valve, and power generation module, realizes the function of waste heat power generation, solves the problems of low waste heat utilization rate, waste gas pollution and equipment corrosion, can fully collect the residual waste heat of the device, improve the waste heat utilization rate and the power generation capacity of the device, reduce wastewater and waste discharge, and reduce environmental pollution.

[0033] 4. This invention, by installing a circulation module, achieves the function of rational resource recovery, solves the problems of resource waste and high energy consumption, avoids steam leakage, extends the service life of the equipment, and improves the heat exchange efficiency of the equipment. Attached Figure Description

[0034] Figure 1 This is a front view structural diagram of the present invention;

[0035] Figure 2 This is a schematic diagram of the front structure of the present invention;

[0036] Figure 3 This is a schematic diagram of the heating component structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the granulation module structure of the present invention;

[0038] Figure 5 This is a schematic diagram of the power generation module structure of the present invention;

[0039] Figure 6 This is a schematic diagram of the loop module structure of the present invention;

[0040] Figure 7 This is a schematic diagram of the pressurization pump structure of the present invention;

[0041] Figure 8 This is a schematic diagram of the lifting component structure of the present invention.

[0042] In the diagram: 1. Purification box; 2. Feed inlet; 3. Controller; 4. Nozzle; 5. Storage box; 6. Weight sensor; 7. Stirring rod; 8. Purification motor; 9. Adapter; 10. Recovery pipe; 11. Third connecting valve; 12. Temperature sensor; 13. Microwave transmitter; 14. Heating chamber; 15. Conveyor belt; 16. Granulation box; 17. Centrifugal crushing unit; 18. Cooling pipe; 19. Granulation motor; 20. Feeding valve; 21. Heat exchanger; 22. Power generation unit; 23. Absorption heat pump; 24. Return 25. Flow tube; 26. Heat exchanger; 27. Water tank; 28. Circulating pump; 29. ​​Regulating valve; 30. Pressurizing pump; 31. Mixing tank; 32. Push rod; 33. Balance tube; 34. Piston; 35. Water valve; 36. Cavity; 37. Base plate; 38. Lifting rod; 39. Sealing ring; 40. Rotating shaft; 41. Fixing device; 42. Air inlet; 43. Air outlet; 44. Vacuum pump; 45. Filter screen; 46. Compressor; 47. Recovery valve; 48. Recovery box; 49. Pressure sensor; 40. Discharge port. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 7 A waste heat recovery power generation device for high-temperature blast furnace slag particles includes a purification box 1 and a purification module. The purification box 1 has a feed inlet 2 installed on the left side of its outer wall. The purification module is connected to a controller 3 installed on the front side of the outer wall of the granulation box 16 via a signal line.

[0047] The purification module includes: a nozzle 4, a storage tank 5, a weight sensor 6, a stirring rod 7, and a purification motor 8;

[0048] A storage bin 5 is installed on the upper side of the outer wall of the purification chamber 1. A nozzle 4 is installed on the upper side of the inner wall of the purification chamber 1. The nozzle 4 is connected to the storage bin 5 through a first connecting valve. A purification motor 8 is installed on the lower side of the inner wall of the purification chamber 1. An adapter 9 is installed at the output end of the purification motor 8. The adapter 9 is connected to the nozzle 4 and the stirring rod 7 installed on the lower side of the inner wall of the purification chamber 1 through a connecting shaft. A weight sensor 6 is installed in the middle of the outer wall of the purification motor 8. The weight sensor 6 and the purification motor 8 are connected to the controller 3 through signal lines.

[0049] A recovery pipe 10 is installed on the rear side of the outer wall of the purification box 1. The input end of the recovery pipe 10 is connected to the purification box 1 and the granulation box 16 respectively. A connecting valve 11 is installed at the connection between the recovery pipe 10 and the purification box 1 and the granulation box 16. The recovery pipe 10 is connected to the heating chamber 14 through the connecting valve 11. The heat replenishment component is connected to the temperature sensor 12 through a signal line.

[0050] The heating assembly includes: a microwave transmitter 13, a heating chamber 14, a conveyor belt 15, a temperature sensor 12, and a feeding valve 20;

[0051] A heating chamber 14 is installed on the right side of the outer wall of the purification chamber 1. Feeding valves 20 are installed on the left and right sides of the outer wall of the heating chamber 14. The heating chamber 14 is connected to the purification chamber 1 through the feeding valves 20.

[0052] The feeding valve 20 is connected to the controller 3 via a signal line. Microwave transmitters 13 are installed on the front and rear sides of the heating chamber 14. A conveyor belt 15 is installed on the lower part of the inner wall of the heating chamber 14. The conveyor belt 15 is connected to the adapter 9 via a connecting shaft. Temperature sensors 12 are installed on the left and right sides of the outer wall of the heating chamber 14. The temperature sensors 12 are connected to the microwave transmitters 13 and the controller 3 via signal lines.

[0053] The water tank 26 has a pressure pump 29 on the rear side of its outer wall. The pressure pump 29 is connected to the mixing tank 30 installed on the upper side of the outer wall of the nozzle 4 through a connecting pipe. The pressure pump 29 includes: a push rod 31, a balance pipe 32, a piston 33, a water valve 34, and a cavity 35.

[0054] A water valve 34 is installed on the lower side of the outer wall of the storage box 5. A cavity 35 is installed on the lower side of the outer wall of the water valve 34. A piston 33 is installed on the left side of the outer wall of the cavity 35. A push rod 31 is installed on the left side of the outer wall of the piston 33. The push rod 31 is connected to the purification motor 8 through a connecting shaft. Balance pipes 32 are installed on the upper and lower sides of the outer wall of the piston 33.

[0055] Furthermore, the operator feeds the high-temperature blast furnace slag into the purification box 1 through the feed inlet 2. The weight sensor 6 located at the bottom of the purification box 1 detects the weight of the high-temperature blast furnace slag and transmits the information to the controller 3. Based on the weight of the high-temperature blast furnace slag in the purification box 1, the controller 3 controls the first connecting valve to connect the storage box 5 and the mixing box 30, and simultaneously controls the water valve 34 to connect the water tank 26. The controller also controls the adapter 9 at the output end of the purification motor 8 to connect the push rod 31 and the purification motor 8. Driven by the purification motor 8, the push rod 31 pushes the piston 33 back and forth, pressurizing the material that enters the cavity 35 through the water valve 34 and then passing it through the connecting pipe to the mixing box 30. The material stored in the storage box 5 for processing the high-temperature blast furnace slag is then mixed with the material in the mixing box 30. After being pressurized, the water flow is mixed to form a treatment liquid, which is sprayed from nozzle 4 into purification tank 1 to mix with high-temperature blast furnace slag. Subsequently, controller 3 controls adapter 9 to connect purification motor 8 and stirring rod 7 to fully mix the treatment liquid with the high-temperature blast furnace slag, allowing the treatment liquid and high-temperature blast furnace slag to react fully. During this process, controller 3 controls the passage of the first connecting valve and water valve 34 based on the weight of the high-temperature blast furnace slag in purification tank 1 transmitted by weight sensor 6, thereby controlling the frequency and quantity of treatment liquid sprayed into purification tank 1. The component of the treatment liquid used to prepare the high-temperature blast furnace slag treatment in storage tank 5 is phosphoric acid. After being adjusted in mixing tank 30, the concentration of phosphoric acid added to purification tank 1 is controlled at 40% to 45%. The weight ratio of phosphoric acid to high-temperature blast furnace slag is 1:5 to 1:8. After processing, the controller 3 controls the feeding valve 20 on the left side of the outer wall of the heating component to open, and the processed high-temperature blast furnace slag enters the heating chamber 14. When the high-temperature blast furnace slag enters the heating chamber 14, the temperature sensor 12 located on the left side of the outer wall of the heating chamber 14 detects the temperature of the high-temperature blast furnace slag and transmits the information to the controller 3. The controller 3 controls the microwave transmitter 13 to perform temperature compensation on the high-temperature blast furnace slag according to the temperature of the high-temperature blast furnace slag. During temperature compensation, the controller 3 selectively connects the recovery pipe 10 and the heating chamber 14 through the third connecting valve 11 according to the difference between the high-temperature blast furnace slag and the set temperature, and the high temperature in the recovery pipe 10 is used to compensate for the temperature difference. Warm gas is used for auxiliary heating, thereby reducing the energy consumed by the microwave transmitter 13. This ensures that the temperature of the high-temperature blast furnace slag is uniform during transportation by the conveyor belt 15 driven by the purification motor 8. Then, the feeding valve 20 on the right side of the heating chamber 14 is opened to send the high-temperature blast furnace slag into the granulation box 16. When the high-temperature blast furnace slag enters the granulation box 16, the temperature sensor 12 detects the temperature of the high-temperature blast furnace slag again. This achieves the function of uniformizing the performance of the high-temperature blast furnace slag, solving the problems of slag particle adhesion, poor granulation uniformity, equipment corrosion, and environmental pollution. It can optimize the physical properties of slag particles, reduce the viscosity and surface tension of the high-temperature blast furnace slag, avoid material damage caused by local overheating, and extend the service life of the equipment.

[0056] Example 2: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 A waste heat recovery power generation device for high-temperature blast furnace slag particles, wherein a discharge port 49 is installed on the right side of the outer wall of the heating chamber 14, and the right side of the outer wall of the discharge port 49 is connected to the granulation box 16. The granulation module includes: granulation box 16, centrifugal crushing unit 17, cooling pipe 18, granulation motor 19 and wind power component.

[0057] A granulation box 16 is installed on the right side of the outer wall of the discharge port 49. A cooling pipe 18 is installed in the interlayer of the granulation box 16. A centrifugal crushing unit 17 is installed in the middle of the inner wall of the granulation box 16. The centrifugal crushing unit 17 is connected to the granulation motor 19 through a connecting shaft. The granulation motor 19 is installed in the middle of the rear side of the outer wall of the granulation box 16. The granulation motor 19 is connected to the controller 3 through a signal line. A wind power component is installed on the inner wall of the granulation box 16.

[0058] A base plate 36 is installed on the upper side of the outer wall of the purification motor 8, and a lifting assembly is installed on the lower side of the outer wall of the base plate 36. The lifting assembly is connected to the adapter 9 through a lifting rod 37. The lifting assembly includes: a sealing ring 38, a lifting rod 37, a rotating shaft 39, and a fixing device 40.

[0059] A lifting rod 37 is installed on the left side of the outer wall of the purification box 1, a rotating shaft 39 is installed in the middle of the lower side of the outer wall of the bottom plate 36, and sealing rings 38 are installed around the lower side of the outer wall of the bottom plate 36. The lifting rod 37 and the rotating shaft 39 are connected by a fixing device 40 installed on the lower side of the outer wall of the bottom plate 36.

[0060] The wind power component includes: an air inlet 41, an air outlet 42, a vacuum pump 43, a filter 44, and a compressor 45;

[0061] An air outlet 42 is installed on the upper side of the outer wall of the granulation box 16. A filter screen 44 is installed on the upper side of the outer wall of the air outlet 42. The air outlet 42 is connected to a vacuum pump 43 installed on the upper side of the outer wall of the granulation box 16 through a connecting pipe. The connecting pipe connecting the air outlet 42 and the vacuum pump 43 is connected to the recovery pipe 10 through a second connecting valve. An air inlet 41 is provided on the lower side of the inner wall of the granulation box 16. The air inlet 41 is connected to a compressor 45 installed on the rear side of the outer wall of the granulation box 16 through a connecting pipe. The vacuum pump 43 and the compressor 45 are connected to the granulation motor 19 through a connecting shaft.

[0062] Pressure sensors are installed in the middle of the inner walls of the granulation box 16 and the heat exchange box 25. The pressure sensors are connected to the controller 3 through signal lines.

[0063] Furthermore, after the high-temperature blast furnace slag is processed in the purification chamber 1, the controller 3 controls the fixing device 40 to release the fixing of the lifting rod 37 and the rotating shaft 39. The purification motor 8 is connected to the lifting rod 37 via the adapter 9. Driven by the purification motor 8, the lifting rod 37, located on the lower left side of the purification chamber 1, is raised, tilting the bottom plate 36. This causes the high-temperature blast furnace slag on the bottom plate 36 to slide down towards the heating component under gravity. The controller 3 controls the feeding valve 20 on the left side of the heating chamber 14 to open, allowing the high-temperature blast furnace slag to enter the heating chamber 14. Simultaneously, the controller 3 controls the adapter 9 to connect the purification motor 8 and the... Conveyor belt 15 opens the feeding valve 20 on the right side of heating chamber 14, allowing high-temperature blast furnace slag to be conveyed from discharge port 49 into granulation box 16. After the high-temperature blast furnace slag enters granulation box 16, controller 3 controls centrifugal crushing unit 17 to process the high-temperature blast furnace slag. While centrifugal crushing unit 17 is processing the high-temperature blast furnace slag, controller 3 controls granulation motor 19 to drive vacuum pump 43 to extract high-temperature gas from granulation box 16 from air outlet 42. At the same time, granulation motor 19 drives compressor 45 to compress external air and inject it into granulation box 16 from air inlet 41. During air extraction and injection, a pressure sensor 48 located inside the granulation box 16 detects the internal pressure. By controlling the air extraction and injection rate, the internal pressure of the granulation box 16 is maintained within a certain range. Small particles generated during the processing of high-temperature blast furnace slag in the centrifugal crushing unit 17 undergo rapid heat exchange through high-pressure gas ejected from the air inlet 41 located at the bottom of the granulation box 16. The air inlet 41 is arranged in a ring array with an elevation angle of 15° and an inner diameter of 5mm to 8m, increasing the suspension time of the small particles in the high-temperature blast furnace slag and reducing the pressure within the granulation box 16. After heat exchange, the cooling pipe 18 in the layer solidifies rapidly. The high-temperature air after heat exchange is drawn away by the vacuum pump 43. When it passes through the air outlet 42, the filter screen 44 located on the upper side of the air outlet 42 filters the impurities in the air. At the same time, the controller 3 opens the second connecting valve to allow the high-temperature air to enter the recovery pipe 10, realizing the function of efficient waste heat recovery. It solves the problems of low waste heat utilization rate, environmental pollution, poor slag particle uniformity and high energy consumption. It can inhibit the excessive growth of silicate crystals in the slag, reduce the energy consumption of crushing high-temperature blast furnace slag, suppress the overflow of high-temperature gas, and improve the heat exchange efficiency of the device.

[0064] Example 3: Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 A waste heat recovery power generation device for high-temperature blast furnace slag particles, wherein the output end of the recovery pipe 10 is connected to the power generation module through a fourth connecting valve;

[0065] A heat exchanger 21 is installed on the lower side of the outer wall of the purification box 1. The heat exchanger 21 is connected to the recovery pipe 10 and the heat exchange box 25 through connecting pipes. A power generation unit 22 is installed on the lower side of the outer wall of the heat exchanger 21. An absorption heat pump 23 is installed on the lower side of the outer wall of the power generation unit 22. The absorption heat pump 23 is connected to the power generation unit 22 through connecting pipes. The absorption heat pump 23 is connected to the water tank 26 installed on the upper side of the outer wall of the compressor 45 through a return pipe 24. A return pipe 24 is installed on the rear side of the outer wall of the absorption heat pump 23.

[0066] A recovery valve 46 is installed in the middle of the outer wall of the granulation box 16, and a recovery box 47 is installed on the right side of the outer wall of the recovery valve 46;

[0067] Furthermore, the high-temperature blast furnace slag enters the purification chamber 1 through the feed inlet 2. After processing in the purification chamber 1, the controller 3 controls the opening of the connecting valve 11 between the recovery pipe 10 and the purification chamber 1. After the high-temperature blast furnace slag passes through the heating chamber 14 and undergoes temperature compensation by the heating component, it enters the granulation chamber 16. At the same time, the controller 3 controls the opening of the third connecting valve 11 between the recovery pipe 10 and the heating chamber 14, and simultaneously connects the vacuum pump 43. Under the action of the vacuum pump 43, the residual high-temperature air in the purification chamber 1 and the heating chamber 14 is extracted. The heat from the granulated high-temperature blast furnace slag enters the heat exchanger 21 through the recovery pipe 10. During the granulation process in the granulation box 16, the heat from the granulated small particles of high-temperature blast furnace slag is absorbed and converted by the wind turbine assembly and the cooling pipe 18. The heat absorbed by the wind turbine assembly through the air is input into the heat exchanger 21 through the recovery pipe 10. The heat absorbed by the cooling pipe 18 is converted by the heat exchange box 25 and enters the heat exchanger 21 in the form of high-temperature steam. The heat exchanger 21 then transfers the heat from the purification box 1 and the heating chamber 14 to the heat exchanger 21. The residual heat, the heat from air heat exchange by the wind turbine components, and the heat from heat exchange by the cooling pipe 18 are converted into medium-pressure steam with a pressure of 1.6MPa to 2.5MPa. The medium-pressure steam is then fed into the power generation unit 22, which uses the steam to generate electricity. After power generation, the low-pressure steam with a pressure of 0.3MPa enters the absorption heat pump 23. The absorption heat pump 23 increases the temperature of the low-pressure steam to supplement the heat source for the power generation unit 22, thereby improving the power generation efficiency. The condensed water flows back into the water tank 26 through the return pipe 24. The small particles of high-temperature blast furnace slag that cannot be heat exchanged after granulation in the granulation box 16 are controlled by the controller 3 to open the recovery valve 46. Under the action of centrifugal force and pressure, the small particles of high-temperature blast furnace slag enter the recovery box 47 through the recovery valve 46 for storage, which is convenient for subsequent use. This realizes the function of waste heat power generation, solves the problems of low waste heat utilization rate, waste gas pollution and equipment corrosion, fully collects the residual waste heat of the device, improves the waste heat utilization rate and the power generation capacity of the device, reduces wastewater and waste discharge, and reduces environmental pollution.

[0068] Example 4: Please refer to Figure 1 , Figure 2 and Figure 6A waste heat recovery power generation device for high-temperature blast furnace slag particles, wherein the cooling pipe 18 is connected to the circulating pump 27 through the connecting pipe, the input end of the circulating pump 27 is connected to the water tank 26 through the connecting pipe, and a circulation module is installed on the rear side of the outer wall of the granulation box 16. The circulation module includes: water tank 26, circulating pump 27, regulating valve 28 and heat exchange box 25.

[0069] A water tank 26 is installed on the rear side of the outer wall of the granulation box 16. A circulation pump 27 is installed on the upper side of the outer wall of the water tank 26. A heat exchange box 25 is installed on the rear side of the outer wall of the circulation pump 27. A regulating valve 28 is installed on the lower side of the outer wall of the circulation pump 27. The circulation pump 27 is connected to the water tank 26 and the heat exchange box 25 through the regulating valve 28. The output end of the cooling pipe 18 is connected to the upper side of the outer wall of the heat exchange box 25, and the input end of the cooling pipe 18 is connected to the lower side of the outer wall of the heat exchange box 25. The output end of the water tank 26 is connected to the lower side of the outer wall of the heat exchange box 25. The input end of the water tank 26 is connected to the absorption heat pump 23 through the return pipe 24.

[0070] Furthermore, during the granulation and heat exchange process of high-temperature blast furnace slag in the granulation box 16, the cooling medium in the spiral cooling pipe 18 located in the interlayer of the granulation box 16 absorbs heat. The high-temperature cooling medium after absorbing heat flows into the heat exchange box 25 from the upper side of the outer wall. At this time, the flow rate of the low-temperature water in the water tank 26 is adjusted by the regulating valve 28, so that the flow rate of the low-temperature water flowing out of the heat exchange box 25 from the lower side of the outer wall of the heat exchange box 25 is between 1 m / s and 1.5 m / s, which is different from the flow rate of the high-temperature blast furnace slag flowing from the top to the bottom of the heat exchange box 25. The cooling medium forms a counter-current heat exchange. After heat exchange, the low-temperature water is converted into water vapor. The controller 3 controls the fourth connecting valve to connect the recovery pipe 10 to the connecting pipe on the upper side of the outer wall of the heat exchange box 25 where the low-temperature water flows out. This allows the water vapor to enter the heat exchanger 21 through the recovery pipe 10 to participate in power generation. The condensate after power generation flows into the water tank 26 through the return pipe 24 to replenish the water source. This achieves the function of reasonable resource recovery, solves the problems of resource waste and high energy consumption, avoids steam leakage, extends the service life of the equipment, and improves the heat exchange efficiency of the equipment.

[0071] Example 5: Please refer to Figure 1 , Figure 3 and Figure 4 A waste heat recovery power generation device for high-temperature blast furnace slag particles, wherein a discharge port 49 is installed on the right side of the outer wall of the heating chamber 14, and the right side of the outer wall of the discharge port 49 is connected to the granulation box 16. The granulation module includes: granulation box 16, centrifugal crushing unit 17, cooling pipe 18, granulation motor 19 and wind power component.

[0072] A granulation box 16 is installed on the right side of the outer wall of the discharge port 49. A cooling pipe 18 is installed in the interlayer of the granulation box 16. A centrifugal crushing unit 17 is installed in the middle of the inner wall of the granulation box 16. The centrifugal crushing unit 17 is connected to the granulation motor 19 through a connecting shaft. The granulation motor 19 is installed in the middle of the rear side of the outer wall of the granulation box 16. The granulation motor 19 is connected to the controller 3 through a signal line. A wind power component is installed on the inner wall of the granulation box 16.

[0073] The wind power component includes: an air inlet 41, an air outlet 42, a vacuum pump 43, a filter 44, and a compressor 45;

[0074] An air outlet 42 is installed on the upper side of the outer wall of the granulation box 16. A filter screen 44 is installed on the upper side of the outer wall of the air outlet 42. The air outlet 42 is connected to a vacuum pump 43 installed on the upper side of the outer wall of the granulation box 16 through a connecting pipe. The connecting pipe connecting the air outlet 42 and the vacuum pump 43 is connected to a recovery pipe 10 through a connecting valve 11. An air inlet 41 is provided on the lower side of the inner wall of the granulation box 16. The air inlet 41 is connected to a compressor 45 installed on the rear side of the outer wall of the granulation box 16 through a connecting pipe. The vacuum pump 43 and the compressor 45 are connected to the granulation motor 19 through a connecting shaft.

[0075] Furthermore, after the high-temperature blast furnace slag enters the granulation box 16, the controller 3 controls the granulation motor 19 to drive the centrifugal crushing unit 17 to process the high-temperature blast furnace slag. When processing the low-viscosity blast furnace slag, the controller 3 controls the granulation motor 19 to drive the compressor 45 to compress air and blow it into the granulation box 16 through the air inlet 41 at the bottom of the granulation box 16. At the same time, the controller 3 controls the granulation motor 19 to drive the vacuum pump 43 to extract the high-temperature gas from the granulation box 16. During this process, the controller 3 controls the compressor 45 to input air into the granulation box 16 through the air inlet 41 at a rate greater than the rate at which the vacuum pump 43 extracts the gas from the granulation box 16, thereby increasing the internal pressure of the granulation box 16 and enhancing the airflow shear. Force accelerates the crushing of liquid slag, reducing the average particle size of slag by 20% to 30%, while inhibiting the formation of slag wool. When the temperature sensor 12 located on the right side of the outer wall of the heating chamber 14 detects that the temperature inside the granulation box 16 drops to 800℃ to 1000℃, which is the critical cooling stage of molten slag phase transformation, the controller 3 can take the same measures to maintain the pressure inside the granulation box 16 at a micro-positive pressure environment of +3kPa to +5kPa for a short time, increasing the forced convection heat transfer rate between the air and the surface, thereby improving the glass conversion rate. When processing molten slag containing iron oxides, the micro-positive pressure environment inside the granulation box 16 can inhibit the exothermic oxidation reaction of iron elements, thereby avoiding the occurrence of slag particle adhesion and equipment damage caused by local overheating.

[0076] Working principle: The operator feeds high-temperature blast furnace slag into the purification tank 1 through the feed inlet 2. The weight sensor 6 at the bottom of the purification tank 1 detects the weight of the high-temperature blast furnace slag and transmits the information to the controller 3. Based on the weight of the high-temperature blast furnace slag in the purification tank 1, the controller 3 controls the first connecting valve to connect the storage tank 5 and the mixing tank 30, and simultaneously controls the water valve 34 to connect the water tank 26. The controller also controls the adapter 9 at the output end of the purification motor 8 to connect the push rod 31 and the purification motor 8. Driven by the purification motor 8, the push rod 31 pushes the piston 33 back and forth, pressurizing the water that enters the cavity 35 through the water valve 34 and then passing it through the connecting pipe to the mixing tank 30. The material stored in the storage tank 5 for processing the high-temperature blast furnace slag mixes with the pressurized water flow. After mixing, a treatment liquid is formed and sprayed from nozzle 4 into purification tank 1 to mix with high-temperature blast furnace slag. Subsequently, controller 3 controls adapter 9 to connect purification motor 8 and stirring rod 7 to fully mix the treatment liquid and high-temperature blast furnace slag, allowing them to react fully. During this process, controller 3 controls the passage of the first connecting valve and water valve 34 based on the weight of the high-temperature blast furnace slag in purification tank 1 transmitted by weight sensor 6, thereby controlling the frequency and quantity of treatment liquid sprayed into purification tank 1. The component of the treatment liquid used to prepare the treatment of high-temperature blast furnace slag in storage tank 5 is phosphoric acid. After being adjusted in mixing tank 30, the concentration of phosphoric acid added to purification tank 1 is controlled at 40% to 45%. The weight of the added phosphoric acid and the high-temperature blast furnace slag... With a ratio of 1:5 to 1:8, after the high-temperature blast furnace slag is processed in the purification box 1, the controller 3 controls the fixing device 40 to release the fixing of the lifting rod 37 and the rotating shaft 39. The purification motor 8 is connected to the lifting rod 37 through the adapter 9. Driven by the purification motor 8, the lifting rod 37 located on the lower left side of the purification box 1 is raised, tilting the bottom plate 36, so that the high-temperature blast furnace slag on the bottom plate 36 slides down to the heating component under the action of gravity. The controller 3 controls the feeding valve 20 on the left side of the heating chamber 14 to open, and the processed high-temperature blast furnace slag enters the heating chamber 14. When the high-temperature blast furnace slag enters the heating chamber 14, the temperature sensor 12 located on the left side of the outer wall of the heating chamber 14 detects the temperature of the high-temperature blast furnace slag and transmits the information to the... The controller 3 controls the microwave transmitter 13 to perform temperature compensation on the high-temperature blast furnace slag based on the temperature of the high-temperature blast furnace slag. During temperature compensation, the controller 3 selectively connects the recovery pipe 10 and the heating chamber 14 through the third connecting valve 11 based on the difference between the high-temperature blast furnace slag and the set temperature. The high-temperature gas in the recovery pipe 10 is used for auxiliary heating, thereby reducing the energy consumed by the microwave transmitter 13. This ensures that the temperature of the high-temperature blast furnace slag is uniform during transportation by the conveyor belt 15 driven by the purification motor 8. Then, the feeding valve 20 on the right side of the heating chamber 14 is opened to send the high-temperature blast furnace slag into the granulation box 16. When the high-temperature blast furnace slag enters the granulation box 16, the temperature sensor 12 detects the temperature of the high-temperature blast furnace slag again.

[0077] High-temperature blast furnace slag enters the heating chamber 14. Simultaneously, the control adapter 9 connects the purification motor 8 and the conveyor belt 15, opening the feeding valve 20 on the right side of the heating chamber 14. The high-temperature blast furnace slag is then fed from the discharge port 49 into the granulation box 16. After the high-temperature blast furnace slag enters the granulation box 16, the controller 3 controls the centrifugal crushing unit 17 to process it. While the centrifugal crushing unit 17 is processing the high-temperature blast furnace slag, the controller 3 controls the granulation motor 19 to drive the vacuum pump 43 to extract the high-temperature gas from the granulation box 16 through the air outlet 42. Simultaneously, the granulation motor 19 drives the compressor 45 to compress external air and inject it into the granulation box 16 through the air inlet 41. During the air extraction and injection process, the pressure sensor 48 located inside the granulation box 16 monitors the granulation process. The internal pressure of the granulation box 16 is monitored. The pressure inside the granulation box 16 is maintained within a certain range by controlling the rate of air extraction and injection. When the high temperature blast furnace slag is processed by the centrifugal crushing unit 17, the small particles are rapidly heated by the high pressure gas ejected from the air inlet 41 at the bottom of the granulation box 16. The air inlet 41 is arranged in a ring array with an elevation angle of 15° and an inner diameter of 5mm to 8m, which increases the suspension time of the small particles of high temperature blast furnace slag. The cooling pipe 18 located in the inner wall interlayer of the granulation box 16 is rapidly solidified after heat exchange. The high temperature air after heat exchange is extracted by the vacuum pump 43. When it passes through the air outlet 42, the filter screen 44 located on the upper side of the air outlet 42 filters the impurities in the air. At the same time, the controller 3 opens the second connecting valve to allow the high temperature air to enter the recovery pipe 10.

[0078] High-temperature blast furnace slag enters the purification chamber 1 through the feed inlet 2. After processing in the purification chamber 1, the controller 3 controls the opening of the connecting valve 11 between the recovery pipe 10 and the purification chamber 1. After the high-temperature blast furnace slag undergoes temperature compensation in the heating chamber 14 via the heat compensation component and enters the granulation chamber 16, the controller 3 controls the opening of the third connecting valve 11 between the recovery pipe 10 and the heating chamber 14, and simultaneously connects the vacuum pump 43. Under the action of the vacuum pump 43, the residual high-temperature air in the purification chamber 1 and the heating chamber 14 is extracted and enters the heat exchanger 21 through the recovery pipe 10. During the granulation process of the high-temperature blast furnace slag in the granulation chamber 16, the heat of the granulated small particles of high-temperature blast furnace slag is absorbed and converted by the wind power component and the cooling pipe 18. The heat absorbed by the wind power component through the air is input into the heat exchanger 21 through the recovery pipe 10, and the heat absorbed by the cooling pipe 18 passes through the heat exchanger 25. After conversion, the heat enters the heat exchanger 21 in the form of high-temperature steam. The heat exchanger 21 converts the residual heat from the purification box 1 and the heating chamber 14, the heat from the air exchange of the wind turbine components, and the heat from the cooling pipe 18 into medium-pressure steam with a pressure of 1.6MPa to 2.5MPa. The medium-pressure steam is then fed into the power generation unit 22, which uses the steam to generate electricity. After power generation, the low-pressure steam with a pressure of 0.3MPa enters the absorption heat pump 23. The absorption heat pump 23 increases the temperature of the low-pressure steam to supplement the heat source for the power generation unit 22 and improve the power generation efficiency. The condensed water flows back into the water tank 26 through the return pipe 24. The controller 3 controls the recovery valve 46 to open the small high-temperature blast furnace slag particles that cannot be heat exchanged after granulation in the granulation box 16. Under the action of centrifugal force and pressure, the small high-temperature blast furnace slag particles enter the recovery box 47 through the recovery valve 46 for storage, which is convenient for subsequent use.

[0079] During the granulation and heat exchange process of high-temperature blast furnace slag in granulation box 16, the cooling medium in the spiral cooling pipe 18 located in the jacket of granulation box 16 absorbs heat. After absorbing heat, the high-temperature cooling medium flows into heat exchange box 25 from the upper side of the outer wall. At this time, the flow rate of low-temperature water in water tank 26 is called by the regulating valve 28 through the circulating pump 27, so that the low-temperature water flows out of heat exchange box 25 from the lower side of the outer wall of heat exchange box 25 from bottom to top at a flow rate between 1m / s and 1.5m / s, forming countercurrent heat exchange with the high-temperature cooling medium flowing through heat exchange box 25 from top to bottom. After heat exchange, the low-temperature water is converted into water vapor. The controller 3 controls the fourth connecting valve to connect the recovery pipe 10 with the connecting pipe of the low-temperature water flowing out from the upper side of the outer wall of heat exchange box 25, so that the water vapor enters the heat exchanger 21 through the recovery pipe 10 to participate in power generation. After power generation is completed, the condensate flows into water tank 26 through return pipe 24 to replenish the water source.

[0080] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A waste heat recovery power generation device for high-temperature blast furnace slag particles, characterized in that: It includes a purification box (1) and a purification module. The purification box (1) has a feed inlet (2) installed on the left side of its outer wall. The purification module is connected to a controller (3) installed on the front side of the outer wall of the granulation box (16) via a signal line. The purification module includes: a nozzle (4), a storage tank (5), a weight sensor (6), a stirring rod (7), and a purification motor (8); A storage bin (5) is installed on the upper side of the outer wall of the purification box (1). A nozzle (4) is installed on the upper side of the inner wall of the purification box (1). The nozzle (4) is connected to the storage bin (5) through a first connecting valve. A purification motor (8) is installed on the lower side of the inner wall of the purification box (1). An adapter (9) is installed at the output end of the purification motor (8). The adapter (9) is connected to the nozzle (4) and the stirring rod (7) installed on the lower side of the inner wall of the purification box (1) through a connecting shaft. A weight sensor (6) is installed in the middle of the outer wall of the purification motor (8). The weight sensor (6) and the purification motor (8) are connected to the controller (3) through signal lines. A recovery pipe (10) is installed on the rear side of the outer wall of the purification box (1). The recovery pipe (10) is connected to the purification box (1) and the granulation box (16) respectively. A second connecting valve is installed at the connection between the recovery pipe (10) and the purification box (1) and the granulation box (16). The recovery pipe (10) is connected to the heating chamber (14) through the third connecting valve (11). The heat replenishment component is connected to the temperature sensor (12) through the signal line. The heating assembly includes: a microwave transmitter (13), a heating chamber (14), a conveyor belt (15), a temperature sensor (12), and a feed valve (20). A heating chamber (14) is installed on the right side of the outer wall of the purification chamber (1). Feeding valves (20) are installed on the left and right sides of the outer wall of the heating chamber (14). The heating chamber (14) is connected to the purification chamber (1) through the feeding valves (20). The heating chamber (14) has a discharge port (49) installed on the right side of its outer wall. The discharge port (49) is connected to the granulation box (16) on the right side of its outer wall. The granulation module includes: granulation box (16), centrifugal crushing unit (17), cooling pipe (18), granulation motor (19) and wind power assembly. A granulation box (16) is installed on the right side of the outer wall of the discharge port (49). A cooling pipe (18) is installed in the interlayer of the granulation box (16). A centrifugal crushing unit (17) is installed in the middle of the inner wall of the granulation box (16). The centrifugal crushing unit (17) is connected to the granulation motor (19) through a connecting shaft. A granulation motor (19) is installed in the middle of the rear side of the outer wall of the granulation box (16). The granulation motor (19) is connected to the controller (3) through a signal line. A wind power component is installed on the inner wall of the granulation box (16). The cooling pipe (18) is connected to the circulating pump (27) through a connecting pipe. The input end of the circulating pump (27) is connected to the water tank (26) through a connecting pipe. A circulation module is installed on the rear side of the outer wall of the granulation box (16). The circulation module includes: water tank (26), circulating pump (27), regulating valve (28) and heat exchange box (25). A water tank (26) is installed on the rear side of the outer wall of the granulation box (16). A circulation pump (27) is installed on the upper side of the outer wall of the water tank (26). A heat exchange box (25) is installed on the rear side of the outer wall of the circulation pump (27). A regulating valve (28) is installed on the lower side of the outer wall of the circulation pump (27). The circulation pump (27) is connected to the water tank (26) and the heat exchange box (25) respectively through the regulating valve (28). The output end of the cooling pipe (18) is connected to the upper side of the outer wall of the heat exchange box (25). The input end of the cooling pipe (18) is connected to the lower side of the outer wall of the heat exchange box (25). The output end of the water tank (26) is connected to the lower side of the outer wall of the heat exchange box (25). The input end of the water tank (26) is connected to the absorption heat pump (23) through the return pipe (24).

2. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: The output end of the recovery pipe (10) is connected to the power generation module through the fourth connecting valve; A heat exchanger (21) is installed on the lower side of the outer wall of the purification box (1). The heat exchanger (21) is connected to the recovery pipe (10) and the heat exchange box (25) respectively through connecting pipes. A power generation unit (22) is installed on the lower side of the outer wall of the heat exchanger (21). An absorption heat pump (23) is installed on the lower side of the outer wall of the power generation unit (22). The absorption heat pump (23) is connected to the power generation unit (22) through connecting pipes. The absorption heat pump (23) is connected to the water tank (26) installed on the upper side of the outer wall of the compressor (45) through return pipe (24). A return pipe (24) is installed on the rear side of the outer wall of the absorption heat pump (23).

3. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: The purification motor (8) has a base plate (36) installed on the upper side of its outer wall, and a lifting assembly is installed on the lower side of the outer wall of the base plate (36). The lifting assembly is connected to the adapter (9) through a lifting rod (37). The lifting assembly includes: a sealing ring (38), a lifting rod (37), a rotating shaft (39), and a fixing device (40). A lifting rod (37) is installed on the left side of the outer wall of the purification box (1), a rotating shaft (39) is installed in the middle of the lower side of the outer wall of the bottom plate (36), and a sealing ring (38) is installed around the lower side of the outer wall of the bottom plate (36). The lifting rod (37) and the rotating shaft (39) are connected by a fixture (40) installed on the lower side of the outer wall of the bottom plate (36).

4. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: The water tank (26) has a pressure pump (29) on the rear side of its outer wall. The pressure pump (29) is connected to the mixing tank (30) installed on the upper side of the outer wall of the nozzle (4) through a connecting pipe. The pressure pump (29) includes: a push rod (31), a balance pipe (32), a piston (33), a water valve (34), and a cavity (35). A water valve (34) is installed on the lower side of the outer wall of the storage box (5). A cavity (35) is installed on the lower side of the outer wall of the water valve (34). A piston (33) is installed on the left side of the outer wall of the cavity (35). A push rod (31) is installed on the left side of the outer wall of the piston (33). The push rod (31) is connected to the purification motor (8) through a connecting shaft. Balance pipes (32) are installed on the upper and lower sides of the outer wall of the piston (33).

5. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: The feeding valve (20) is connected to the controller (3) via a signal line. Microwave transmitters (13) are installed on the front and rear sides of the heating chamber (14). A conveyor belt (15) is installed on the lower part of the inner wall of the heating chamber (14). The conveyor belt (15) is connected to the adapter (9) via a connecting shaft. Temperature sensors (12) are installed on the left and right sides of the outer wall of the heating chamber (14). The temperature sensors (12) are connected to the microwave transmitters (13) and the controller (3) via signal lines.

6. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: The wind power components include: an air inlet (41), an air outlet (42), a vacuum pump (43), a filter (44), and a compressor (45). An air outlet (42) is installed on the upper side of the outer wall of the granulation box (16). A filter screen (44) is installed on the upper side of the outer wall of the air outlet (42). The air outlet (42) is connected to the vacuum pump (43) installed on the upper side of the outer wall of the granulation box (16) through a connecting pipe. The connecting pipe connecting the air outlet (42) and the vacuum pump (43) is connected to the recovery pipe (10) through a second connecting valve. An air inlet (41) is provided on the lower side of the inner wall of the granulation box (16). The air inlet (41) is connected to the compressor (45) installed on the rear side of the outer wall of the granulation box (16) through a connecting pipe. The vacuum pump (43) and the compressor (45) are connected to the granulation motor (19) through a connecting shaft.

7. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: A recovery valve (46) is installed in the middle of the outer wall of the granulation box (16), and a recovery box (47) is installed on the right side of the outer wall of the recovery valve (46).

8. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: Pressure sensors are installed in the middle of the inner walls of the granulation box (16) and the heat exchange box (25), and the pressure sensors are connected to the controller (3) through signal lines.

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