Novel heating medium conduction combined type cement cooler

Abstract

The invention relates to the technical field of hot cement cooling equipment, and discloses a heating medium conduction combined type cement cooler. The device comprises a cement circulation sealing cavity and a cooling cavity which are independently arranged, heat transfer is carried out between the cement circulation sealing cavity and the cooling cavity through a heat transfer assembly, and the assembly is mainly composed of an evaporation unit and a condensation unit which are internally provided with heating media. The water circulation system sprays water to the condensation unit through the spraying device, a water film is formed on the surface of the condensation unit, and a three-in-one composite cooling system is formed through water flow heat transfer, water evaporation phase change heat transfer, enhanced cooling of the condensation unit, air convection in the cooling cavity and heat medium phase change (or convection) heat transfer in the heat transfer assembly. The hot cement releases heat to vaporize the heat medium, and the steam of the heat medium is liquefied and refluxed to the condensing unit, so that closed circulation is realized. Compared with traditional equipment, the heat exchange efficiency of the device is improved by more than 40%, water can be saved by 80%-90%, the power consumption per ton is reduced by 60%-85%, and the occupied area is reduced by 30%-50%.

Description

Technical Field

[0001] The present invention relates to the technical field of hot cement cooling equipment, and particularly to a novel heat medium conduction composite cement cooler. Background Art

[0002] In the modernization process of the cement industry, the control of the finished product temperature has become the core problem restricting the technological upgrading of the industry. Limited by the physical properties of the energy conversion in the grinding process, the temperature of the cement leaving the mill is generally as high as 100 - 200 °C. Even after the transportation and storage links, it still remains above 80 °C when leaving the factory. This continuous high temperature will trigger multiple chain reactions: the aging of transportation equipment, frequent false setting of cement caused by gypsum dehydration, the easy embrittlement and breakage of packaging bags in a high-temperature environment, the caking of cement particles in the humid and hot environment in the warehouse, seriously affecting the product homogeneity. More severely, in special application scenarios such as airport projects, nuclear power projects, and deep-sea infrastructure construction, the initial temperature of the cement needs to be strictly controlled below 65 °C, which poses almost harsh requirements on the existing cooling technologies.

[0003] The currently widely used cooling solutions in the industry mainly rely on heat exchange with a single medium of air or water, and the temperature drop can only reach 30 - 60 °C. The essential defect of air cooling lies in the low specific heat capacity of air. To achieve effective cooling, a super-large ventilation system needs to be configured, resulting in a sharp increase in the floor area of the equipment and the energy consumption cost.

[0004] In contrast, the spiral lifting cooler in the water cooling technology exchanges heat through the water curtain convection on the outer wall of the cylinder. Although it occupies the mainstream position in industrial applications, it exposes three technical bottlenecks: First, the precisely processed cylinder needs to ensure a concentricity of 0.05 mm level, and the manufacturing cost of the equipment is 2 - 3 times that of conventional equipment; second, for the continuously operating spiral lifting device, the power consumption per ton reaches 0.5 - 1 KWh, and the water consumption per ton of the water cooling system exceeds 0.5 cubic meters. The operation cost of the equipment is high, and the cooling efficiency of the equipment decays exponentially with the accumulation of scale. After 6 months of operation, the heat transfer coefficient drops by more than 40%.

[0005] The improved horizontal spiral coolers represented by CN201753324U and CN101891061A, through the structural innovation of the hollow shaft and the spiral blade, although improve the heat transfer efficiency to a certain extent, fail to break through the fundamental limitations of traditional technologies: high installation, manufacturing, and operation costs, large floor area of the equipment, low heat transfer efficiency, etc. More notably, the single heat exchange mode adopted by the existing cooling systems has limited heat transfer efficiency and is difficult to cope with the temperature gradient change of cement particles during transportation, often resulting in the phenomenon of rapid cooling on the surface while continuous heat storage inside, ultimately leading to uneven temperature distribution of the finished product.

[0006] Patent CN215288544U discloses a cement cooling device with uniform feeding, which includes a cooling bin with a feed hopper and a discharge hopper at the upper and lower ends respectively. Heat dissipation fins are fixedly arranged on the outer wall of the cooling bin, and heat exchange plates are arranged obliquely on both sides of the cooling bin. Heat exchange components are arranged on the heat exchange plates, and heat exchange tubes are embedded in the heat exchange components. The heat of the cement is absorbed by the water in the heat exchange tubes, thereby cooling the cement. Although this technology uses both air cooling and water cooling methods simultaneously, due to both being sensible heat exchanges, the heat exchange efficiency is still relatively low. In addition, this technology has a fatal flaw, that is, the heat exchange tubes with circulating water are placed in the hot cement to be cooled. Cement particles have a certain hardness. After the heat exchange tubes operate for a period of time, they may leak due to wear. The amount of cooling water is very large. Once it leaks into the cement, it will react chemically with the cement, resulting in major production accidents. Therefore, how to isolate the cooling medium from the cement to be cooled and quickly and effectively transfer the heat is a difficult problem that urgently needs to be solved in this field.

[0007] Facing increasingly stringent environmental protection regulations and energy efficiency standards, traditional cooling technologies have shown signs of fatigue. The industry urgently needs to develop a composite and efficient cooling device that can achieve a stable temperature drop of at least 80°C in a limited space, while controlling the cooling energy consumption per unit of cement below 0.3 kWh / t and having no worries about production accidents. This technological breakthrough not only concerns the improvement of cement quality but also will have a profound impact on promoting the green transformation of the building materials industry. Summary of the Invention

[0008] In order to overcome the problems in the prior art such as low cooling efficiency, high energy consumption, large floor area, and possible production accidents, the present invention provides a heat medium conduction composite type cement cooler.

[0009] The technical solution adopted to achieve the above object is: a heat medium conduction composite type cement cooler, including: a) An independent hot cement flow sealing cavity and a cooling cavity. The cement flow sealing cavity is provided with a cement inlet at the top and a cement outlet at the bottom, and the lower side wall of the cooling cavity is provided with an air inlet and the top is provided with an air outlet; b) A heat transfer component, mainly composed of an evaporation unit and a condensation unit to form a closed vacuum structure. The evaporation unit is internally provided with a heat medium and is arranged inside the cement flow sealing cavity, and the condensation unit is arranged inside the cooling cavity; c) A water circulation system, including a water tank arranged at the bottom or below the cooling cavity, a water pump connected to the water tank in sequence through a pipeline, and a spraying device at the top of the condensation unit; d) A hot cement uniform distribution device installed on the upper part of the cement flow sealing cavity; e) A cement conveying power device installed on the outer wall of the cement flow sealing cavity; f) A dust cleaning device installed on the side of the evaporation unit; g) An axial flow fan or induced draft fan provided at the air outlet.

[0010] Furthermore, the installation elevation of the evaporation unit is lower than that of the condensation unit.

[0011] Furthermore, the cement conveying power device is at least one of an acoustic wave device, a mechanical vibration device, a pulse jet device, or a compressed air conveying device.

[0012] Furthermore, the outer wall of the heat transfer surface of the evaporation unit is provided with a wear-resistant and anti-corrosion coating.

[0013] Furthermore, the filling amount of the heat transfer medium in the heat transfer component is 5% - 100% of the volume of the evaporation unit.

[0014] Furthermore, the vacuum degree in the heat transfer component is 10 -4 -10 -1 Pa.

[0015] Furthermore, the water tank is provided with a makeup water pipeline, a chemical dosing device, and a sewage pipeline.

[0016] Furthermore, the makeup water pipeline, the chemical dosing device, and the sewage pipeline are all provided with automatic control devices.

[0017] Furthermore, the axial flow fan or induced draft fan and the water pump are provided with frequency conversion control devices.

[0018] Furthermore, it further includes an intelligent control system, which includes: temperature sensors and cement flow rate monitoring probes arranged in the sealed cavity of the cement flow; temperature sensors arranged on the heat transfer surfaces of the evaporation unit and the condensation unit, temperature sensors, water level sensors, water quality monitoring probes, and a PLC controller arranged in the water tank. The PLC controller dynamically adjusts the fan speed, the spray water volume, and the spray pressure according to the cement temperature, the temperature difference of the condensation unit, and the cement flow rate fed back by the sensors. The PLC controller also controls the valves to perform makeup water, chemical dosing, and sewage discharge operations according to the feedback results of the temperature, water level sensor, and water quality detection in the water tank.

[0019] The beneficial effects of the present invention are as follows: 1. Super strong cooling capacity. Through theoretical calculation, it can cool high-temperature cement at 200°C to 70°C at most, with a temperature reduction amplitude of 130°C, far exceeding that of traditional equipment (30 - 60°C). The principle is that the water circulation system sprays water on the condensation unit through the spraying device to form a water film on the surface of the condensation unit. Through heat transfer by water flow and heat transfer by water evaporation phase change, enhanced cooling is implemented on the condensation unit. Combined with air convection in the cooling sealed cavity and heat transfer by phase change (or convection) of the heat transfer medium in the heat transfer component, a three-in-one composite cooling system is formed, and the unit heat exchange efficiency can be increased by more than 40%, which is applicable to ultra-large-scale production lines.

[0020] 2. Energy-saving, water-saving, and environmentally friendly. Since there is no spiral lifting device and super-large ventilation system, the power consumption per ton of this device is only 0.15 kWh / t, which is reduced by 60% - 85% compared with traditional spiral lifting type (0.5 - 1 kWh / t) and water-air composite type (0.4 - 0.5 kWh / t). The water consumption per ton is 0.05 m³ / t, and the circulating water consumption is only about 1 / 10 of that of the traditional spiral lifting type, with remarkable water-saving benefits. The fully enclosed design realizes "zero dust and low steam emission", completely solving the environmental problems existing in traditional equipment.

[0021] 3. The device operates intelligently and stably. The axial flow fan or induced draft fan and the water pump adopt variable frequency controllable technology to avoid unnecessary energy loss caused by temperature fluctuations. The temperature at different detection points, the flow rate of the heat transfer medium, and the temperature difference of the condensation unit in the device are monitored in real time. Through the PLC control program, the rotation speed of the fan, the water spraying pressure, and the water spraying amount are automatically adjusted to ensure the long-term stability of the cooling effect.

[0022] 4. The device is compact and has a small floor area. Due to the need not to be equipped with a large water circulation system (such as cooling towers, water storage pools) and the improvement of heat exchange efficiency, compared with traditional devices, the capital construction investment of this device can be reduced by more than 30%, and the floor area is reduced by 30% - 50%.

[0023] 5. Low maintenance cost. There are no mechanical stirring components, and the overall service life of the equipment exceeds 10 years. Description of the Drawings

[0024] Figure 1 is the three-dimensional external view of Embodiment 1 of the present invention.

[0025] Figure 2 is the front view of Embodiment 1 of the present invention.

[0026] Figure 3 is the right view of Embodiment 1 of the present invention.

[0027] Figure 4 is the front view of Embodiment 2 of the present invention. Detailed Embodiments

[0028] To make the objectives, technical solutions and advantages of this application clearer, the following further explains the present invention with reference to the accompanying drawings and embodiments. The implementation manners of the present invention include but are not limited to the following embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope protected by this application.

[0029] Please refer to Figures 1-4 , the present invention provides a technical solution: a heat medium conduction composite cement cooler, including: a) mutually independent hot cement circulation sealed cavities 1 and cooling cavities 2, the top of the cement circulation sealed cavity is provided with a cement inlet 3, and the bottom is provided with a cement outlet 4. The lower side wall of the cooling cavity is provided with an air inlet 5, and the top is provided with an air outlet 6; b) a heat transfer assembly, mainly composed of an evaporation unit 8 and a condensation unit 9 to form a closed vacuum structure. The evaporation unit is internally provided with a heat medium and is arranged inside the cement circulation sealed cavity, and the condensation unit is arranged inside the cooling cavity; c) a water circulation system, including a water tank 10 arranged at the bottom or below the cooling cavity, a water pump 12 connected to the water tank in sequence through a pipeline 11, and a spraying device 13 at the top of the condensation unit; d) a distribution device 14 installed in the upper part of the cement circulation sealed cavity for evenly distributing hot cement; e) a cement conveying power device 15 installed on the outer wall of the cement circulation sealed cavity; f) a dust cleaning device 16 installed on the side of the evaporation unit to prevent cement from accumulating on the evaporation unit; g) an axial flow fan or induced draft fan 17 arranged at the air outlet.

[0030] Further, the installation elevation of the evaporation unit 8 is lower than that of the condensation unit 9.

[0031] Further, the cement conveying power device 15 is at least one of an acoustic wave device, a mechanical vibration device, a pulse jet device or a compressed air conveying device.

[0032] Further, the outer wall of the heat transfer surface of the evaporation unit 8 is provided with a wear-resistant and corrosion-resistant coating.

[0033] Further, the filling amount of the heat medium in the heat transfer assembly is 5%-100% of the volume of the evaporation unit.

[0034] Further, the vacuum degree in the heat transfer assembly is 10 -4 -10 -1 Pa.

[0035] Further, the water tank is provided with a make-up water pipeline 18, a chemical dosing device 19 and a sewage pipeline 20.

[0036] Furthermore, automatic control devices are provided for the make-up water pipeline, chemical dosing device, and sewage pipeline.

[0037] Furthermore, frequency conversion control devices are provided for the axial flow fan or induced draft fan and the water pump.

[0038] Furthermore, it further includes an intelligent control system, which includes: a temperature sensor 21 and a cement flow rate monitoring probe 22 arranged in the cement circulation sealed cavity; a temperature sensor 23 on the heat exchange surface of the evaporation unit and a temperature sensor 24 on the heat exchange surface of the condensation unit; a temperature sensor 25, a water level sensor 26, a water quality monitoring probe 27, and a PLC controller 28 arranged in the water tank. The PLC controller dynamically adjusts the fan speed, spray water volume, and spray pressure according to the cement temperature, condensation unit temperature difference, and cement flow rate fed back by the sensors; the PLC controller also controls the valves to perform water make-up, chemical dosing, and sewage discharge operations according to the feedback results of the temperature, water level sensor, and water quality detection in the water tank.

[0039] Embodiment 1: A heat medium conduction composite type cement cooler, as Figures 1-3 shown, includes: a hot cement circulation sealed cavity 1 and a cooling cavity 2 that are independent of each other and arranged side by side.

[0040] The cement circulation sealed cavity 1 is a place for cooling hot cement. A cement inlet 3 is provided at the top of the cement circulation sealed cavity, and a cement outlet 4 is provided at the bottom. A distribution device 14 for evenly distributing hot cement is provided in the upper part of the cement circulation sealed cavity, and a cement conveying power device 15 for promoting the flow of hot cement is provided on the outer wall of the cement circulation sealed cavity. The cement conveying power device can be one or a combination of an acoustic wave device, a mechanical vibration device, a pulse jet device, or a compressed air conveying device. In this embodiment, an acoustic wave device is used. To improve the anti-wear and anti-corrosion performance, a wear-resistant and corrosion-resistant layer is also provided on the inner wall of the cement circulation sealed cavity.

[0041] The cooling cavity 2 is a place for the flow of the cooling medium. An air inlet 5 is opened on the side wall at the bottom of the cooling cavity, and an air outlet 6 is provided at the top. Two axial flow fans 17 are provided at the air outlet to force the air to convect through the cooling cavity.

[0042] The heat of the hot cement is exchanged with the cooling medium through the heat transfer component. The heat transfer component is composed of an evaporation unit 8 and a condensation unit 9 to form a closed vacuum structure. The evaporation unit 8 is internally provided with a heat medium and is arranged inside the cement circulation sealed cavity 1, and the condensation unit 9 is arranged inside the cooling cavity 2. The installation elevation of the evaporation unit 8 is lower than that of the condensation unit 9, and the gravity difference can be used to drive the circulation of the heat medium. To further improve the heat exchange efficiency of the heat exchange component, the heat transfer component is evacuated, and the vacuum degree is 10 -4Pa. Further, a ceramic wear-resistant and anti-corrosion coating is provided on the outer wall of the heat exchange surface of the evaporation unit 8 to increase the service life of the evaporation unit and reduce the maintenance cost of the heating surface. To prevent cement from adsorbing on the heat exchange surface of the evaporation unit 8 to form a heat-insulating layer, a soot cleaning device 16 is also provided at the heat exchange surface. The soot cleaning device can use acoustic soot cleaning, mechanical shock soot cleaning or air cannon soot cleaning devices. In this embodiment, a mechanical shock soot cleaning device is used. The heat transfer medium in the heat exchange assembly can be media such as water, ethanol, acetone or Freon. According to the magnitude of the heat transfer amount, through thermal calculation, the filling amount of the heat transfer medium is determined. In this embodiment, the filling amount of the heat transfer medium in the heat transfer assembly is 5% of the volume of the evaporation unit.

[0043] The water circulation system includes a water tank 10 provided below the cooling cavity 2, a water pump 12 connected to the water tank in sequence through a pipeline 11, and a spraying device 13 located above the condensation unit 9. The spraying device forms a uniform water film on the surface of the condensation unit to enhance heat transfer. A water replenishing pipeline 18, a chemical dosing device 19 and a sewage discharge pipeline 20 are provided in the water tank. According to the water level, temperature and water quality analysis results of the water tank, water replenishing, chemical dosing and sewage discharge operations are carried out.

[0044] The device is also provided with an intelligent control system, including: a frequency conversion control device for the axial flow fan and the water pump; a temperature sensor 21 and a cement flow rate monitoring probe 22 provided in the cement circulation sealed cavity; a temperature sensor 23 provided on the surface of the evaporation unit and a temperature sensor 24 provided on the surface of the condensation unit; a temperature sensor 25, a water level sensor 26 and a water quality monitoring probe 27 provided in the water tank; a PLC controller 28 linked with the variable frequency axial flow fan, the water pump and each pipeline valve; The PLC controller dynamically adjusts the fan speed, the spraying water volume and the spraying pressure according to the cement temperature, the temperature difference of the condensation unit and the cement flow rate fed back by the sensors. The PLC controller also carries out water replenishing, chemical dosing and sewage discharge operations according to the feedback results of the temperature, water level sensor and water quality detection in the water tank.

[0045] The working process of the device is as follows: After high-temperature cement enters the cement circulation sealed cavity from the top cement inlet, it forms a uniform material layer under the action of the cement distribution device. Under the action of the cement conveying power device, the cement material layer flows through the evaporation unit and makes full contact with the heat exchange surface of the evaporation unit. The heat released by the hot cement is transferred to the heat medium through the wall of the evaporation unit. After the heat medium absorbs heat and vaporizes, the steam enters the condensation unit through the vacuum channel. In the condensation unit, the steam releases latent heat and liquefies through a triple cooling mechanism: the spray water film absorbs most of the heat through sensible heat exchange, the air convection driven by the axial flow fan further enhances heat transfer, and at the same time, the latent heat released by the phase change of the heat medium is transferred to the cooling medium through the wall of the condensation unit. The liquefied heat medium flows back to the evaporation unit by gravity difference to form a closed cycle. The cooling water absorbs heat and then flows into the water tank for recycling, and the makeup water pipeline, dosing device and sewage pipeline maintain the water quality stability.

[0046] The intelligent control system integrates multiple types of sensors to collect data on cement temperature, flow rate, temperature difference in the condensation unit, water temperature, water level in the water tank, and water quality detection results in real time, and dynamically adjusts the fan speed, spray pressure, dust cleaning frequency, and makeup water, dosing, and sewage discharge operations. The variable frequency control of the axial flow fan and the water pump matches the real-time heat load changes to avoid energy waste; the dust cleaning device maintains the cleanliness of the heat transfer surface through periodic vibration or pulse injection to prevent the increase of thermal resistance.

[0047] The advantages of this device stem from the synergistic effect of multiple heat transfer mechanisms: spray water cooling directly absorbs heat through sensible heat exchange, air convection breaks the thermal boundary layer to improve heat transfer efficiency, and the phase change of the heat medium utilizes latent heat to greatly increase the unit heat transfer amount. The vacuum environment reduces the heat conduction loss of gas molecules and at the same time lowers the boiling point of the heat medium to accelerate the phase change process. The closed-loop water system design significantly reduces water consumption, and the fully sealed structure blocks the escape of dust, meeting environmental protection requirements. The intelligent control system not only maintains the stable operation of the system but also maximally saves the energy consumed by the system.

[0048] Through theoretical calculation, this device can cool 200°C high-temperature cement to 70°C, with a temperature drop of 130°C. The power consumption and water consumption per ton of cement are reduced to 0.15 kWh and 0.05 m³ respectively. The comprehensive energy efficiency is increased by 60% - 85% compared with traditional equipment, water conservation can reach 80% - 90%, and the floor area is reduced by 30% - 50%.

[0049] Example 2: A heat medium conduction composite type cement cooler, as Figure 4 shown, includes: a hot cement circulation sealed cavity 1 and a cooling cavity 2 arranged independently. Among them, the cooling cavity 2 is arranged above the hot cement circulation sealed cavity 1. This layout greatly reduces the floor area of the equipment and is especially suitable for renovation projects with limited area.

[0050] The top of the sealed cement circulation cavity is provided with a cement inlet 3, and the bottom is provided with a cement outlet 4. Inside the upper part of the sealed cement circulation cavity, a distributing device 14 for evenly distributing hot cement is provided. On the outer wall of the sealed cement circulation cavity, a cement conveying power device 15 for promoting the flow of hot cement is provided. The cement conveying power device can be one or a combination of an acoustic wave device, a mechanical vibration device, a pulse jet device, or a compressed air conveying device. In this embodiment, a pulse jet device is used. To improve the anti-wear and corrosion resistance, a wear-resistant and corrosion-resistant layer is also provided on the inner wall of the sealed cement circulation cavity.

[0051] An air inlet 5 is opened on the side wall at the bottom of the cooling cavity 2, and an air outlet 6 is provided at the top. An induced draft fan 17 is provided at the air outlet to force the air to convect through the cooling cavity.

[0052] The heat of the hot cement exchanges heat with the cooling medium through the heat transfer component. The heat transfer component is composed of an evaporation unit 8 and a condensation unit 9 connected by a sealed pipeline 7 to form a closed vacuum structure. The evaporation unit 8 is internally provided with a heat medium and is arranged inside the sealed cement circulation cavity 1, and the condensation unit 9 is arranged inside the cooling cavity 2. To further improve the heat exchange efficiency of the heat exchange component, the heat transfer component is evacuated, and the vacuum degree is 10 -1 Pa. Further, a silicon carbide wear-resistant and corrosion-resistant coating is provided on the outer wall of the heat exchange surface of the evaporation unit to improve the service life of the evaporation unit and reduce the maintenance cost of the heating surface. To prevent cement from adsorbing on the heat exchange surface of the evaporation unit 8 to form an insulating layer, a soot cleaning device 16 is also provided at the heat exchange surface. The soot cleaning device can use acoustic soot cleaning, mechanical vibration soot cleaning, or air cannon soot cleaning devices. In this embodiment, an acoustic soot cleaning device is used. The heat medium in the heat exchange component can be a medium such as water, ethanol, acetone, or Freon. The filling amount of the heat medium in the heat transfer component is 100% of the volume of the evaporation unit.

[0053] The water circulation system includes a water tank 10 provided at the bottom of the cooling cavity 2, a water pump 12 connected to the water tank in sequence through a pipeline 11, and a spraying device 13 located above the condensation unit 9. The spraying device forms a uniform water film on the surface of the condensation unit to strengthen heat exchange. The water tank is provided with a makeup water pipeline 18, a dosing device 19, and a sewage pipeline 20. According to the water quality analysis results of the water tank, makeup water, dosing, and sewage discharge operations are carried out.

[0054] The device is also provided with an intelligent control system, including: a frequency conversion control device for the induced draft fan and the water pump; a temperature sensor 21 and a cement flow rate monitoring probe 22 provided inside the sealed cement circulation cavity; a temperature sensor 23 provided on the surface of the evaporation unit and a temperature sensor 24 provided on the surface of the condensation unit; a temperature sensor 25, a water level sensor 26, and a water quality monitoring probe 27 provided inside the water tank; a PLC controller 28 linked with the frequency conversion axial flow fan, the water pump, and each pipeline valve; The PLC controller dynamically adjusts the fan speed, the spray water volume, and the spray pressure according to the cement temperature, the temperature difference of the condensation unit, and the cement flow rate fed back by the sensors. The PLC controller also performs water replenishment, chemical addition, and sewage discharge operations according to the feedback results of the temperature, water level sensor, and water quality detection in the water tank.

Claims

1. A heat medium conduction composite type cement cooler, characterized in that, Comprising: a) Independently arranged heat cement flow-through sealed cavity and cooling cavity, with a cement inlet at the top of the cement flow-through sealed cavity and a cement outlet at the bottom, and an air inlet on the lower side wall of the cooling cavity and an air outlet at the top; b) A heat transfer component, mainly composed of an evaporation unit and a condensation unit to form a closed vacuum structure. The evaporation unit is internally provided with a heat medium and is arranged inside the cement flow-through sealed cavity, and the condensation unit is arranged inside the cooling cavity; c) A water circulation system, including a water tank arranged at the bottom or below the cooling cavity, a water pump connected to the water tank in sequence through a pipeline, and a spraying device at the top of the condensation unit; d) A hot cement even distribution device installed on the upper part of the cement flow-through sealed cavity; e) A cement conveying power device installed on the outer wall of the cement flow-through sealed cavity; f) A dust cleaning device installed on the side of the evaporation unit; g) An axial flow fan or induced draft fan arranged at the air outlet.

2. The cement cooler according to claim 1, wherein The installation elevation of the evaporation unit is lower than that of the condensation unit.

3. The cement cooler according to claim 1, characterized in that, The cement conveying power device is at least one of an acoustic wave device, a mechanical vibration device, a pulse jet device or a compressed air conveying device.

4. The cement cooler according to claim 1, characterized in that, The outer wall of the heat transfer surface of the evaporation unit is provided with a wear-resistant and corrosion-resistant coating.

5. The cement cooler according to claim 1, characterized in that, The filling amount of the heat medium in the heat transfer component is 5%-100% of the volume of the evaporation unit.

6. The cement cooler according to claim 1, wherein, The vacuum degree inside the heat transfer component is 10 -4 -10 -1 Pa.

7. The cement cooler according to claim 1, characterized in that, The water tank is provided with a makeup water pipeline, a dosing device and a sewage pipeline.

8. The cement cooler according to claim 7, characterized in that, The makeup water pipeline, the dosing device and the sewage pipeline are all provided with automatic control devices.

9. The cement cooler according to any one of claims 1-8, characterized in that, The axial flow fan or induced draft fan and the water pump are provided with frequency conversion control devices.

10. The cement cooler according to claim 9, characterized in that, It further includes an intelligent control system, which includes: a temperature sensor and a cement flow rate monitoring probe arranged inside the cement flow-through sealed cavity; temperature sensors arranged on the heat transfer surfaces of the evaporation unit and the condensation unit, a temperature sensor, a water level sensor, a water quality monitoring probe and a PLC controller arranged inside the water tank. The PLC controller dynamically adjusts the fan speed, the spraying water volume and the spraying pressure according to the cement temperature, the temperature difference of the condensation unit and the cement flow rate fed back by the sensors. The PLC controller also controls the valves to perform makeup water, dosing and sewage discharge operations according to the feedback results of the temperature, water level sensor and water quality detection in the water tank.

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