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

Abstract

The invention discloses a waste heat recovery power generation device for high-temperature blast furnace slag particles, and relates to the technical field of blast furnace slag waste heat utilization, the waste heat recovery power generation device comprises a purification box and a purification module, a feeding port is formed in the left side of the outer wall of the purification box, and the purification module is connected with a controller mounted on the front side of the outer wall of a granulation box through a signal line; the purification module comprises a spray head, a storage box, a weight sensor, a stirring rod and a purification motor. By installing the purification module, the function of unifying the performance of the high-temperature blast furnace slag is achieved, the problems of slag particle adhesion, poor granulation uniformity, equipment corrosion and environment pollution are solved, the physical performance of slag particles can be optimized, the viscosity and surface tension of the high-temperature blast furnace slag are reduced, material damage caused by local overheating is avoided, and the service life of the high-temperature blast furnace slag is prolonged. And the service life of the equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of blast furnace slag waste heat utilization, and in particular to a waste heat recovery and power generation device for high-temperature blast furnace slag particles. Background Art

[0002] As a high-energy-consuming industry, the steel industry has long faced a gap in recovering waste heat from its high-temperature slag. Blast furnace slag output temperatures reach 1450°C to 1500°C, with each ton of slag containing up to 1770 megajoules of heat. However, due to the lack of efficient recovery methods, this sensible heat resource has long been wasted. Due to the limitations of traditional water quenching methods, such as high water consumption, unrecovered waste heat, and pollutant emissions, technological breakthroughs have led to the use of dry granulation methods, replacing water quenching methods. This method recovers and utilizes waste heat from blast furnace slag through centrifugal granulation, mobile bulk bed heat exchange, and a dual-pressure steam system, improving resource utilization. Components such as calcium oxide and ferrous oxide present in high-temperature blast furnace slag will cause uneven particle size distribution during granulation, thereby reducing heat exchange efficiency. The performance of the slag particles may deteriorate during subsequent utilization. At the same time, the inconsistent temperature of the high-temperature blast furnace slag will also lead to uneven particle size distribution during granulation, and even local overheating of the device.

[0003] Patent CN108998604B discloses a device for granulating blast furnace slag and recovering waste heat. The above patent realizes that a slag film will be formed at the edge of the rotating slag pan. The heating component heats and insulates the blast furnace slag at the edge of the rotating slag pan, so that the slag film is maintained at a higher temperature, inhibiting the formation of the slag film, which is conducive to reducing the particle size of the granulated slag.

[0004] The above patent heats and insulates the blast furnace slag in the rotating slag pan through a heating component, thereby improving the fluidity of the blast furnace slag and reducing its viscosity coefficient, thereby reducing the viscosity between the blast furnace slag and the rotating slag pan, avoiding the formation of excessive slag film between the blast furnace slag and the rotating slag pan, and there is room for optimization in the pretreatment of high-temperature slag.

[0005] To this end, the present application proposes a waste heat recovery power generation device for high-temperature blast furnace slag particles with unified high-temperature blast furnace slag properties. Summary of the Invention

[0006] The object of the present invention is to provide a waste heat recovery power generation device for high-temperature blast furnace slag particles to solve the technical problems of removing corrosive substances and controlling the temperature of high-temperature blast furnace slag proposed in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: 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 port 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; The purification module includes: a nozzle, a material storage box, a weight sensor, a stirring rod and a purification motor; A material storage box is installed on the upper side of the outer wall of the purification box, a nozzle is installed on the upper side of the inner wall of the purification box, the nozzle is connected to the material storage box through a connecting valve, a purification motor is installed on the lower side of the inner wall of the purification box, an adapter is installed on 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 box through a connecting shaft, a weight sensor is installed in the middle of the outer wall of the purification motor, and the weight sensor and the purification motor are connected to the controller through a signal line.

[0008] Preferably, a recovery pipe is installed on the rear side of the outer wall of the purification box, the input end of the recovery pipe is connected to the purification box and the granulation box respectively, a connecting valve is installed at the connection between the recovery pipe, the purification box and the granulation box, the recovery pipe is connected to the heating chamber through the connecting valve, and the heat supplement component is connected to the temperature sensor through a signal line; The heating components include: microwave emitter, heating cavity, conveyor belt, temperature sensor and feeding valve; A heating chamber is installed on the right side of the outer wall of the purification box, and 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 box through the feeding valve, and the feeding valve is connected to the controller through a signal line. Microwave transmitters are installed on the front and back sides of the heating chamber, and 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 through a connecting shaft. Temperature sensors are installed on the left and right sides of the outer wall of the heating chamber, and the temperature sensors are connected to the microwave transmitter and the controller through signal lines.

[0009] Preferably, 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: a granulation box, a centrifugal crushing unit, a cooling pipe, a granulation motor and a wind component; A granulating 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 granulating box, a centrifugal crushing unit is installed in the middle of the inner wall of the granulating box, the centrifugal crushing unit is connected to the granulating motor through a connecting shaft, a granulating motor is installed in the middle of the rear side of the outer wall of the granulating box, the granulating motor is connected to the controller through a signal line, and a wind component is installed on the inner wall of the granulating box.

[0010] Preferably, the output end of the recovery pipe is connected to the power generation module through a connecting valve, and the power generation module includes: a heat exchanger, a power generation unit, an absorption heat pump and a return pipe; A heat exchanger is installed on the lower side of the outer wall of the purification box, and the heat exchanger is connected to the recovery pipe and the heat exchanger box respectively through connecting pipes. A power generation unit is installed on the lower side of the outer wall of the heat exchanger, and 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 a connecting pipe. 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, and a return pipe is installed on the rear side of the outer wall of the absorption heat pump.

[0011] Preferably, the cooling pipe is connected to the circulation pump through a connecting pipe, the input end of the circulation pump is connected to the water tank through a connecting pipe, and a circulation module is installed on the rear side of the outer wall of the granulating box, and the circulation module includes: a water tank, a circulation pump, a regulating valve and a heat exchange box; 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, and the circulation pump is connected to the water tank and the heat exchange box respectively 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, 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 a return pipe.

[0012] Preferably, a pressure pump is provided on the rear side of the outer wall of the water tank, and the pressure pump is connected to the mixing box installed on the upper side of the outer wall of the nozzle through a connecting pipe. The pressure pump includes: a push rod, a balance pipe, a piston, a water valve and a cavity; 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, and balance pipes are installed on the upper and lower sides of the outer wall of the piston.

[0013] Preferably, a base plate is installed on the upper side of the outer wall of the weight sensor and 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, and the lifting assembly includes: a sealing ring, a lifting rod, a rotating shaft and a fixer; 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 a sealing ring is 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.

[0014] Preferably, the wind power assembly includes: an air inlet, an air outlet, a vacuum pump, a filter and a compressor; An air outlet is installed on the upper side of the outer wall of the granulation box, and a filter is installed on the upper side of the outer wall of the air outlet. The air outlet is connected to the vacuum pump installed on the upper side of the outer wall of the granulation box through a connecting pipe. The connecting pipe connecting the air outlet and the vacuum pump is connected to the recovery pipe through a connecting valve. An air inlet is provided on the lower side of the inner wall of the granulation box. The air inlet array is arranged on the lower surface of the inner wall of the granulation box. The air inlet is connected to the compressor installed on the rear side of the outer wall of the granulation box through a connecting pipe. The vacuum pump and the compressor are connected to the granulation motor through a connecting shaft.

[0015] 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.

[0016] Preferably, a pressure sensor is installed in the middle of the inner wall of the granulating box and the heat exchange box, and the pressure sensor is connected to the controller through a signal line.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present 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 the equipment. 2. The present 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, inhibit the escape of high-temperature gases, and improve the heat exchange efficiency of the device. 3. The present invention realizes the function of waste heat power generation by installing a recovery pipe, a connecting valve and a power generation module, solving the problems of low waste heat utilization, waste gas pollution and equipment corrosion. It 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 pollution to the environment. 4. The present invention realizes the function of reasonable resource recovery by installing a circulation module, solves the problems of resource waste and high energy consumption, can avoid steam escape, extend the service life of the equipment, and improve the heat exchange efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a front structural schematic diagram of the present invention; Figure 3 This is a schematic structural diagram of the heat supplement component of the present invention; Figure 4 This is a schematic structural diagram of the granulation module of the present invention; Figure 5 This is a schematic diagram of the power generation module structure of the present invention; Figure 6 This is a schematic diagram of the circulation module structure of the present invention; Figure 7 It is a schematic structural diagram of the pressure pump of the present invention; Figure 8 It is a schematic diagram of the lifting assembly structure of the present invention.

[0019] Figure: 1, purification box; 2, feed port; 3, controller; 4, nozzle; 5, storage box; 6, weight sensor; 7, stirring rod; 8, purification motor; 9, adapter; 10, recovery pipe; 11, 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, reflux pipe; 25. Heat exchange box; 26. Water tank; 27. Circulation pump; 28. Control valve; 29. Pressure pump; 30. Mixing box; 31. Push rod; 32. Balance pipe; 33. Piston; 34. Water valve; 35. Cavity; 36. Bottom plate; 37. Lifting rod; 38. Sealing ring; 39. Rotating shaft; 40. Fixer; 41. Air inlet; 42. Air outlet; 43. Vacuum pump; 44. Filter; 45. Compressor; 46. Recovery valve; 47. Recovery box; 48. Pressure sensor; 49. Discharge port. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] 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. A feed port 2 is installed on the left side of the outer wall of the purification box 1. The purification module is connected to a controller 3 installed on the front side of the outer wall of the granulation box 16 through a signal line; The purification module includes: a nozzle 4, a material storage box 5, a weight sensor 6, a stirring rod 7 and a purification motor 8; A material storage box 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, and the nozzle 4 is connected to the material storage box 5 through a connecting valve 11. A purification motor 8 is installed on the lower side of the inner wall of the purification box 1, and an adapter 9 is installed on 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, and the weight sensor 6 and the purification motor 8 are connected to the controller 3 through a signal line; 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, 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 heating component is connected to the temperature sensor 12 through a signal line. The heating component includes: a microwave emitter 13, a heating chamber 14, a conveyor belt 15, a temperature sensor 12 and a feeding valve 20; A heating chamber 14 is installed on the right side of the outer wall of the purification box 1, and 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 box 1 through the feeding valve 20, and the feeding valve 20 is connected to the controller 3 through a signal line. Microwave transmitters 13 are installed on the front and back sides of the heating chamber 14, and 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 through a connecting shaft. Temperature sensors 12 are installed on the left and right sides of the outer wall of the heating chamber 14, and the temperature sensors 12 are connected to the microwave transmitter 13 and the controller 3 through signal lines; A pressure pump 29 is provided on the rear side of the outer wall of the water tank 26. The pressure pump 29 is connected to a mixing box 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, and a balance pipe 32 is installed on the upper and lower sides of the outer wall of the piston 33; Furthermore, the operator feeds the high-temperature blast-furnace slag into the purification box 1 from the feed port 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. The controller 3 controls the connecting valve 11 to connect the storage box 5 and the mixing box 30 according to the weight of the high-temperature blast-furnace slag in the purification box 1, and controls the water valve 34 to connect the water tank 26, and 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 to move, and the objects entering the cavity 35 through the water valve 34 are pressurized and then passed to the mixing box 30 through the connecting pipe. The objects used to process the high-temperature blast-furnace slag stored in the storage box 5 are connected to the pressurized objects. The compressed water flow is mixed to form a treatment liquid, which is sprayed from the nozzle 4 into the purification box 1 to mix with the high-temperature blast furnace slag. Then the controller 3 controls the adapter 9 to connect the purification motor 8 and the stirring rod 7 to fully mix the treatment liquid with the high-temperature blast furnace slag, so that the treatment liquid and the high-temperature blast furnace slag fully react. During this process, the controller 3 controls the passage of the connecting valve 11 and the water valve 34 according to the weight of the high-temperature blast furnace slag in the purification box 1 transmitted by the weight sensor 6, thereby controlling the frequency and amount of the treatment liquid sprayed into the purification box 1. The component of the treatment liquid for preparing the high-temperature blast furnace slag in the storage box 5 is phosphoric acid. After modulation in the mixing box 30, the concentration of phosphoric acid added to the purification box 1 is controlled to be 40% to 45%. The weight ratio of phosphoric acid to high-temperature blast furnace slag is 1:5 to 1:8. After the treatment is completed, the controller 3 controls the feed valve 20 on the left side of the outer wall of the supplementary heat component to open, and the treated 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. When performing temperature compensation, the controller 3 selectively connects the recovery pipe 10 and the heating chamber 14 through the connecting valve 11 according to the difference between the high-temperature blast furnace slag and the set temperature. The high-temperature blast furnace slag in the recovery pipe 10 is connected to the heating chamber 14 through the high-temperature blast furnace slag in the recovery pipe 10. The high-temperature gas is used for auxiliary heating, thereby reducing the energy consumed by the microwave emitter 13, so 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, and then the feeding valve 20 on the right side of the heating chamber 14 is opened to feed 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, realizing the function of unifying the performance of the high-temperature blast furnace slag, solving the problems of slag particle adhesion, poor granulation uniformity, corrosion of equipment and pollution of the environment, optimizing the physical properties of the slag particles, reducing the viscosity and surface tension of the high-temperature blast furnace slag, avoiding material damage caused by local overheating, and extending the service life of the equipment.

[0024] 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. A discharge port 49 is installed on the right side of the outer wall of the heating chamber 14. The right side of the outer wall of the discharge port 49 is connected to the granulation box 16. The granulation module includes: a granulation box 16, a centrifugal crushing unit 17, a cooling pipe 18, a granulation motor 19 and a wind power component; 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 via 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 via a signal line. A wind component is installed on the inner wall of the granulation box 16. The weight sensor 6 and the purification motor 8 are provided with a bottom plate 36 on the upper side of the outer wall, and a lifting assembly is provided on the lower side of the outer wall of the bottom 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 fixer 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; The wind power assembly includes: 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, and 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 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 42 is arranged in an array on the lower surface 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. A pressure sensor 48 is installed in the middle of the inner wall of the granulating box 16 and the heat exchange box 25, and the pressure sensor 48 is connected to the controller 3 through a signal line; Furthermore, after the high-temperature blast-furnace slag is processed in the purification box 1, the controller 3 controls the fixer 40 to cancel the fixation of the lifting rod 37 and the rotating shaft 39, and connects the purification motor 8 to the lifting rod 37 through the adapter 9. Driven by the purification motor 8, the lifting rod 37 located on the left side of the lower part of the purification box 1 is raised, and the bottom plate 36 is tilted, so that the high-temperature blast-furnace slag on the bottom plate 36 slides toward the heating component under the action of gravity. The controller 3 controls the feed valve 20 on the left side of the heating chamber 14 to open, and the high-temperature blast-furnace slag enters the heating chamber 14, and at the same time 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 the heating chamber 14, and the high-temperature blast furnace slag is conveyed 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 the high-temperature blast furnace slag. When the centrifugal crushing unit 17 processes 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 in the granulation box 16 from the air outlet 42. At the same time, the granulation motor 19 drives the compressor 45 to compress the external air and inject it into the granulation box 16 from the air inlet 41. During the air extraction and injection process, the pressure sensor 48 located inside the granulation box 16 detects the internal pressure of the granulation box 16. By controlling the air extraction and injection rate, the internal pressure of the granulation box 16 is maintained within the range. The small particles generated when the centrifugal crushing unit 17 treats the high-temperature blast furnace slag are quickly heat-exchanged by the high-pressure gas ejected from the air inlet 41 arranged at the bottom of the granulation box 16. The air inlet 41 is arranged in a circular 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 and the pressure at the inner wall of the granulation box 16. The cooling pipes 18 in the layer solidify quickly after heat exchange, and the high-temperature air after heat exchange is extracted by the vacuum pump 43. When passing through the air outlet 42, the filter screen 44 located on the upper side of the air outlet 42 filters impurities in the air. At the same time, the controller 3 opens the connecting valve 11 to allow the high-temperature air to enter the recovery pipe 10, realizing the function of efficient waste heat recovery, solving the problems of low waste heat utilization rate, environmental pollution, poor slag particle uniformity and high energy consumption, and can inhibit the excessive growth of silicate crystals in the slag, reduce the energy consumption of crushing high-temperature blast furnace slag, inhibit the overflow of high-temperature gas, and improve the heat exchange efficiency of the device.

[0025] 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 connecting valve 11, and the power generation module includes: a heat exchanger 21, a power generation unit 22, an absorption heat pump 23 and a return pipe 24; 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 a connecting pipe. 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. 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; Furthermore, the high-temperature blast furnace slag enters the purification box 1 from the feed port 2. After the high-temperature blast furnace slag is processed in the purification box 1, the controller 3 controls the connecting valve 11 connecting the recovery pipe 10 and the purification box 1 to open. After the high-temperature blast furnace slag passes through the temperature compensation of the supplementary heat component in the heating chamber 14 and enters the granulation box 16, the controller 3 controls the connecting valve 11 connecting the recovery pipe 10 and the heating chamber 14 to open, and at the same time connects the vacuum pump 43. Under the action of the vacuum pump 43, the high-temperature air remaining in the purification box 1 and the heating chamber 14 is extracted, and the high-temperature air is discharged. The high-temperature blast furnace slag enters the heat exchanger 21 through the recovery pipe 10. During the granulation process of the high-temperature blast furnace slag in the granulation box 16, the heat of the granulated small-particle high-temperature blast furnace slag is absorbed and converted under the action of the wind component and the cooling pipe 18. The heat absorbed by the wind component 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 into high-temperature water vapor in the heat exchanger 25 and enters the heat exchanger 21. The heat exchanger 21 converts the residual heat from the purification box 1 and the heating chamber 14 into The stored heat, the heat exchanged by the wind power component through the air, and the heat exchanged by the cooling pipe 18 are converted into medium-pressure steam with a pressure of 1.6MPa to 2.5MPa, which is then passed into the power generation unit 22. The power generation unit 22 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 pass through the recovery valve 46 and enter the recovery box 47 for storage for subsequent utilization, thereby realizing the function of waste heat power generation, solving the problems of low waste heat utilization rate, waste gas pollution to the environment and equipment corrosion, and being able to fully collect the residual waste heat of the device, thereby improving the waste heat utilization rate and the power generation capacity of the device, reducing wastewater and waste emissions, and reducing pollution to the environment.

[0026] 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 circulation pump 27 via a connecting pipe, and the input end of the circulation pump 27 is connected to the water tank 26 via a connecting pipe. A circulation module is installed on the rear side of the outer wall of the granulation box 16, and the circulation module includes: a water tank 26, a circulation pump 27, a regulating valve 28 and a heat exchange box 25; A water tank 26 is installed on the rear side of the outer wall of the granulating box 16, a circulating 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 circulating pump 27, a regulating valve 28 is installed on the lower side of the outer wall of the circulating pump 27, and the circulating 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, and the input end of the water tank 26 is connected to the absorption heat pump 23 through the return pipe 24; Furthermore, during the granulation and heat exchange process of the 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, and the high-temperature cooling medium after absorbing the heat flows into the heat exchange box 25 from the upper side of the outer wall of the heat exchange box 25. At this time, the regulating valve 28 adjusts the flow rate of the circulating pump 27 to call the low-temperature water in the water tank 26, so that the low-temperature water flows out of the heat exchange box 25 from the lower side of the outer wall of the heat exchange box 25 from bottom to top. The flow rate is between 1m / s and 1.5m / s, which is consistent with the high-temperature water flowing through the heat exchange box 25 from top to bottom. The cooling medium forms a countercurrent heat exchange, and after the heat exchange, the low-temperature water is converted into water vapor. The controller 3 controls the connecting valve 11 to connect the recovery pipe 10 with the connecting pipe on the upper side of the outer wall of the heat exchange box 25 where the low-temperature water flows out, so that the water vapor enters the heat exchanger 21 through the recovery pipe 10 to participate in power generation. After the power generation is completed, the condensed water flows into the water tank 26 through the return pipe 24 for water replenishment, realizing the function of reasonable resource recovery, solving the problems of resource waste and high energy consumption, avoiding steam escape, extending the service life of the equipment, and improving the heat exchange efficiency of the equipment.

[0027] 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. A discharge port 49 is installed on the right side of the outer wall of the heating chamber 14. The right side of the outer wall of the discharge port 49 is connected to the granulation box 16. The granulation module includes: a granulation box 16, a centrifugal crushing unit 17, a cooling pipe 18, a granulation motor 19 and a wind power component; 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 via 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 via a signal line. A wind component is installed on the inner wall of the granulation box 16. The wind power assembly includes: 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, and 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 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 42 is arranged in an array on the lower surface 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. 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 the 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 in the granulation box 16. In 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 in the granulation box 16, thereby increasing the internal pressure of the granulation box 16 and enhancing the shear force of the air flow. The force accelerates the crushing of liquid slag, reduces the average particle size of slag particles by 20% to 30%, and suppresses the generation of slag wool. When the temperature sensor 12 located on the right side of the outer wall of the heating chamber 14 senses that the temperature in the granulation box 16 drops to 800°C to 1000°C, that is, the critical cooling stage of the slag phase change, the controller 3 can take the same measures to temporarily maintain the internal pressure of the granulation box 16 at a slightly positive pressure environment of +3kPa to +5kPa, increase the forced convection heat exchange rate between air and the surface, and improve the glass conversion rate. When processing iron oxide-containing slag, the slightly positive pressure environment in the granulation box 16 can suppress the exothermic oxidation reaction of iron elements, thereby avoiding local overheating that causes slag particles to stick together and equipment damage.

[0028] Working principle: The operator feeds the high-temperature blast furnace slag into the purification box 1 from the feed port 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. The controller 3 controls the connecting valve 11 to connect the storage box 5 and the mixing box 30 according to the weight of the high-temperature blast furnace slag in the purification box 1. At the same time, it controls the water valve 34 to connect the water tank 26 and 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 to move. The objects entering the cavity 35 through the water valve 34 are pressurized and then passed through the connecting pipe to the mixing box 30. The objects used to process the high-temperature blast furnace slag stored in the storage box 5 are connected with the pressurized water flow. After mixing, a treatment liquid is formed, which is sprayed from the nozzle 4 into the purification box 1 to mix with the high-temperature blast furnace slag. Then the controller 3 controls the adapter 9 to connect the purification motor 8 and the stirring rod 7 to fully mix the treatment liquid with the high-temperature blast furnace slag, so that the treatment liquid and the high-temperature blast furnace slag fully react. In this process, the controller 3 controls the passage of the connecting valve 11 and the water valve 34 according to the weight of the high-temperature blast furnace slag in the purification box 1 transmitted by the weight sensor 6, thereby controlling the frequency and amount of the treatment liquid sprayed into the purification box 1. The component of the treatment liquid for preparing the treatment of high-temperature blast furnace slag in the storage box 5 is phosphoric acid. After modulation in the mixing box 30, the concentration of phosphoric acid added to the purification box 1 is controlled at 40% to 45%. The weight of phosphoric acid and high-temperature blast furnace slag is added. The amount ratio is 1:5 to 1:8. After the high-temperature blast furnace slag is processed in the purification box 1, the controller 3 controls the fixer 40 to cancel the fixation of the lifting rod 37 and the rotating shaft 39, and connects the purification motor 8 to the lifting rod 37 through the adapter 9. Driven by the purification motor 8, the lifting rod 37 located on the left side of the lower part of the purification box 1 is lifted, and the bottom plate 36 is tilted, so that the high-temperature blast furnace slag on the bottom plate 36 slides toward 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 treated 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 emitter 13 according to the temperature of the high-temperature blast furnace slag to perform temperature compensation on the high-temperature blast furnace slag. When performing temperature compensation, the controller 3 selectively connects the recovery pipe 10 and the heating chamber 14 through the connecting valve 11 according to the difference between the high-temperature blast furnace slag and the set temperature, and uses the high-temperature gas in the recovery pipe 10 to provide auxiliary heat, thereby reducing the energy consumed by the microwave emitter 13, so 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, and then opens the feeding valve 20 on the right side of the heating chamber 14 to feed 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 again detects the temperature of the high-temperature blast furnace slag; The high-temperature blast furnace slag enters the heating chamber 14, and at the same time, the adapter 9 is controlled to connect the purification motor 8 and the conveyor belt 15, and the feeding valve 20 on the right side of the heating chamber 14 is opened to feed the high-temperature blast furnace slag 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 the high-temperature blast furnace slag. When the centrifugal crushing unit 17 processes 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 in the granulation box 16 from the air outlet 42, and at the same time, the granulation motor 19 drives the compressor 45 to compress the external air and inject it into the granulation box 16 from the air inlet 41 during the air extraction and injection process. The pressure sensor 48 located inside the granulation box 16 senses the pressure of the granulation box 16. The internal pressure of the box 16 is detected, and the internal pressure of the granulation box 16 is maintained within a range by controlling the rate of air extraction and injection. The small particles generated when the centrifugal crushing unit 17 processes the high-temperature blast furnace slag are quickly heat-exchanged by the high-pressure gas ejected from the air inlet 41 arranged at the bottom of the granulation box 16. The air inlet 41 is arranged in a circular 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 interlayer of the inner wall of the granulation box 16 is quickly solidified after heat exchange. The high-temperature air after heat exchange is extracted by the vacuum pump 43, and when passing through the air outlet 42, the filter 44 located on the upper side of the air outlet 42 filters impurities in the air. At the same time, the controller 3 opens the connecting valve 11 to allow the high-temperature air to enter the recovery pipe 10; The high-temperature blast furnace slag enters the purification box 1 from the feed port 2. After the processing in the purification box 1 is completed, the controller 3 controls the connecting valve 11 connecting the recovery pipe 10 and the purification box 1 to open. After the high-temperature blast furnace slag passes through the temperature compensation of the supplementary heat component in the heating chamber 14 and enters the granulation box 16, the controller 3 controls the connecting valve 11 connecting the recovery pipe 10 and the heating chamber 14 to open, and at the same time connects the vacuum pump 43. Under the action of the vacuum pump 43, the high-temperature air remaining in the purification box 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 box 16, the heat of the granulated small particles of high-temperature blast furnace slag is absorbed and converted under the action of the wind component and the cooling pipe 18. The heat absorbed by the wind component through the air is input into the heat exchanger 21 through the recovery pipe 10. The heat absorbed through the cooling pipe 18 is converted into heat through the heat exchanger box 25. After condensation, it enters the heat exchanger 21 in the form of high-temperature water vapor. The heat exchanger 21 converts the residual heat from the purification box 1 and the heating chamber 14, the heat of the wind component through air heat exchange and the heat exchanged by the cooling pipe 18 into medium-pressure steam with a pressure of 1.6MPa to 2.5MPa, and then passes the medium-pressure steam into the power generation unit 22. The power generation unit 22 uses 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-particle high-temperature blast furnace slag that cannot be heat exchanged after granulation in the granulation box 16 is controlled by the controller 3 to open the recovery valve 46. Under the action of centrifugal force and pressure, the small-particle high-temperature blast furnace slag passes through the recovery valve 46 and enters the recovery box 47 for storage for subsequent use. During the granulation and heat exchange process of the 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. After absorbing the heat, the high-temperature cooling medium flows into the heat exchange box 25 from the upper side of the outer wall of the heat exchange box 25. At this time, the regulating valve 28 is used to adjust the flow rate of the low-temperature water in the water tank 26 to make the low-temperature water flow out of the heat exchange box 25 from the lower side of the outer wall of the heat exchange box 25 from bottom to top at a flow rate between 1m / s and 1.5m / s, forming a countercurrent heat exchange with the high-temperature cooling medium flowing through the heat exchange box 25 from top to bottom. After the heat exchange, the low-temperature water is converted into water vapor. The controller 3 controls the connecting valve 11 to connect the recovery pipe 10 and the connecting pipe for the low-temperature water outflow on the upper side of the outer wall of the 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 the power generation is completed, the condensed water flows into the water tank 26 through the return pipe 24 for water replenishment.

[0029] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A waste heat recovery power generation device for high-temperature blast furnace slag particles, characterized by: It comprises a purification box (1) and a purification module, wherein a feed port (2) is installed on the left side of the outer wall of the purification box (1), and 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 comprises: a nozzle (4), a material storage box (5), a weight sensor (6), a stirring rod (7) and a purification motor (8); A material storage box (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), and the nozzle (4) is connected to the material storage box (5) through a connecting valve (11). A purification motor (8) is installed on the lower side of the inner wall of the purification box (1), and 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) respectively through a connecting shaft. A weight sensor (6) is installed in the middle of the outer wall of the purification motor (8), and the weight sensor (6) and the purification motor (8) are connected to the controller (3) through a signal line.

2. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: A recovery pipe (10) is installed on the rear side of the outer wall of the purification box (1), and 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), 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), and the heating component is connected to the temperature sensor (12) through a signal line. The heating component includes: a microwave emitter (13), a heating cavity (14), a conveyor belt (15), a temperature sensor (12) and a feeding valve (20); A heating chamber (14) is installed on the right side of the outer wall of the purification box (1), and 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 box (1) through the feeding valve (20), and the feeding valve (20) is connected to the controller (3) through a signal line. Microwave transmitters (13) are installed on the front and back sides of the heating chamber (14), and 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) through a connecting shaft. Temperature sensors (12) are installed on the left and right sides of the outer wall of the heating chamber (14), and the temperature sensors (12) are connected to the microwave transmitter (13) and the controller (3) through a signal line.

3. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 2, characterized in that: 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: a granulation box (16), a centrifugal crushing unit (17), a cooling pipe (18), a granulation motor (19) and a wind power component; 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, and a wind component is installed on the inner wall of the granulation box (16).

4. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 2, characterized in that: The output end of the recovery pipe (10) is connected to the power generation module via a connecting valve (11), and the power generation module comprises: a heat exchanger (21), a power generation unit (22), an absorption heat pump (23) and a return pipe (24); 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 a connecting pipe. The absorption heat pump (23) is connected to a 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).

5. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 3, characterized in that: The cooling pipe (18) is connected to the circulation pump (27) via a connecting pipe, and the input end of the circulation pump (27) is connected to the water tank (26) via a connecting pipe. A circulation module is installed on the rear side of the outer wall of the granulating box (16), and the circulation module includes: a water tank (26), a circulation pump (27), a regulating valve (28) and a heat exchange box (25); A water tank (26) is installed on the rear side of the outer wall of the granulating box (16), a circulating 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 circulating pump (27), a regulating valve (28) is installed on the lower side of the outer wall of the circulating pump (27), the circulating 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), and the input end of the water tank (26) is connected to the absorption heat pump (23) through the return pipe (24).

6. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 5, characterized in that: A pressure pump (29) is provided on the rear side of the outer wall of the water tank (26). The pressure pump (29) is connected to a mixing box (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, and a balance pipe (32) is installed on the upper and lower sides of the outer wall of the piston (33).

7. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: A base plate (36) is installed on the upper side of the outer wall of the weight sensor (6) and 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 fixer (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 through a fixer (40) installed on the lower side of the outer wall of the bottom plate (36).

8. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 3, characterized in that: The wind power assembly comprises: 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 granulating box (16), and a filter (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 granulating 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 granulating box (16). The air inlet (42) is arranged in an array on the lower surface of the inner wall of the granulating box (16). The air inlet (41) is connected to a compressor (45) installed on the rear side of the outer wall of the granulating box (16) through a connecting pipe. The vacuum pump (43) and the compressor (45) are connected to the granulating motor (19) through a connecting shaft.

9. 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).

10. The waste heat recovery power generation device for high-temperature blast furnace slag particles according to claim 1, characterized in that: A pressure sensor (48) is installed in the middle of the inner wall of the granulating box (16) and the heat exchange box (25), and the pressure sensor (48) is connected to the controller (3) via a signal line.

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