An energy-saving ceramsite multi-layer cooling device

Abstract

The present invention discloses an energy-saving ceramic particle multi-layer cooling device, which includes a cooling platform and a feed hopper; the first-layer cooling device includes a cooling cylindrical barrel that slopes downward. A cooling cavity is arranged inside the cooling cylindrical barrel, and the cooling cavity is filled with a coolant. The cooling cylindrical barrel is respectively provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are connected to a coolant circulation system. A rotating framework is rotatably connected inside the cooling cylindrical barrel, and stator spiral vanes are arranged on the rotating framework. The rotating framework is connected to a driving shaft and a first driving motor. The lower end of the cooling cylindrical barrel is connected with an aggregate hopper, and the aggregate hopper is connected with a second-layer cooling device; the second-layer cooling device includes a coolant tank that is connected to the coolant circulation system. A plurality of tube cooling mechanisms are connected to the bottom inside the aggregate hopper, and a material receiving hopper is connected to the bottom of the coolant tank, and a discharge port is arranged on the material receiving hopper. Through the above settings, rapid cooling of the ceramic particles can be achieved, and at the same time, it has the advantages of energy conservation, environmental protection.

Description

Technical Field

[0001] The present invention relates to the field of ceramsite manufacturing, and particularly to an energy-saving multi-layer cooling device for ceramsite. Background Art

[0002] With the continuous development of society and the continuous progress of industrial economy, the amount of waste such as garbage and industrial waste residues generated by human activities is increasing continuously, causing great damage to the environment and wasting resources at the same time. This has become a social problem that pollutes the environment and affects life. How to turn waste into treasure is an important research topic for sustainable development. At present, the main treatment methods for municipal domestic waste at home and abroad include sanitary landfill, composting and incineration, etc. Sanitary landfill has developed from the previous garbage stacking and landfill methods. Although this garbage treatment technology has a large treatment capacity and a simple operation process, due to the long stabilization process of landfills, many landfills have many problems, such as low landfilling utilization rate, occupying a large amount of land resources, etc. The garbage in the landfill produces organic matter, which is very likely to pollute water quality and soil. At the same time, methods such as incineration and composting also have many limitations. Generally speaking, at present, granulating waste such as garbage into ceramsite is a better treatment method.

[0003] Ceramsitization means sintering garbage into ceramsite. Ceramsite, also known as lightweight aggregate or light aggregate (Light weight Aggregate, LWA), uses non-metallic tailings, crop straws, sludge, agricultural solid waste, etc. as the main raw materials, and then adds appropriate additives, and then forms pellets and finally roasts them. It can handle a large amount of waste, has a low roasting cost, avoids secondary pollution of waste, and turns waste into treasure, especially in line with the principles of harmlessness, reduction and resource utilization of solid waste treatment in China. Since the emergence of ceramsite, because this kind of aggregate can replace ordinary sand and gravel to prepare lightweight aggregate concrete, and has the characteristics of low density, high strength, excellent heat preservation and heat insulation performance, and good seismic effect, it has developed rapidly globally. Now the usage amount of ceramsite concrete is second only to ordinary cement concrete, which is why ceramsite is widely used in the building materials industry. In addition, ceramsite can also be used to prepare various filter materials and thermal insulation and sound absorption materials. At the same time, in horticulture and gardening, open-type expanded ceramsite is light in weight and has good water absorption and water retention properties, and is widely used in soilless cultivation. Now colored ceramsite also appears in the decoration of garden floors.

[0004] Ceramsite can not only well solve the pressure on the environment caused by industrial waste residues, but also has a wide range of uses itself, truly turning waste into treasure. Studying the production technology of preparing ceramsite from industrial waste residues has great social benefits and will also produce good economic benefits, and has important practical significance.

[0005] In the production process of ceramsite, it is necessary to cool the ceramsite. During the cooling process, rapid cooling or slow cooling is generally selected according to the temperature of the ceramsite. Generally, slow cooling is carried out above 400 to 700 °C, and rapid cooling can be carried out below 400 °C. This application is directed to rapid cooling below 400 °C. Summary of the Invention

[0006] The purpose of the present invention is to provide an energy-saving multi-layer ceramsite cooling device, which can achieve rapid cooling of ceramsite, and at the same time has the advantages of energy saving, environmental protection.

[0007] To achieve the above object, the present invention provides the following technical solutions: An energy-saving multi-layer ceramsite cooling device includes a cooling platform, on which a feed hopper is arranged, and the feed hopper is connected to a first-layer cooling device;

[0008] The first-layer cooling device includes a cooling cylindrical barrel fixed on the cooling platform. The cooling cylindrical barrel is inclined downward. A cooling cavity is arranged inside the cooling cylindrical barrel, and the cooling cavity is filled with a coolant. An inlet and an outlet are respectively arranged at both ends of the cooling cylindrical barrel. The inlet and the outlet are connected to a coolant circulation system. A rotating skeleton is rotatably connected inside the cooling cylindrical barrel. A plurality of stator spiral blades are arranged in parallel on the rotating skeleton. The rotating skeleton is connected to a driving shaft, and the driving shaft is connected to a first driving motor. A collecting hopper is connected to the lower end of the cooling cylindrical barrel with a lower position, and the collecting hopper is connected to a second-layer cooling device;

[0009] The second-layer cooling device includes a coolant tank connected below the collecting hopper. The coolant tank is connected to the coolant circulation system. A number of tube cooling mechanisms are connected to the bottom inside the collecting hopper. The tube cooling mechanism includes a conical guiding part connected to the bottom of the collecting hopper. The conical guiding part is connected to a cooling tube. The conical guiding part and the cooling tube are located in the coolant. A cooling shaft is arranged inside the cooling tube. Spiral conveying blades are arranged on the cooling shaft. A gear for driving is connected to the end of the cooling shaft. The gear is connected to a chain, and the chain is connected to a second driving motor for driving. A receiving hopper is connected to the bottom of the coolant tank, and a discharge port is arranged on the receiving hopper.

[0010] Through the above technical solution, since the cooling cylinder is filled with flowing coolant inside, after the ceramsite contacts the inside of the cooling cylinder, the ceramsite can be quickly cooled; at the same time, since the first driving motor can drive the driving shaft to drive the rotating framework to rotate, by setting the stator spiral blades and the cooling cylinder is inclined downward, the stator spiral blades can drive the ceramsite to rotate during the rotation process. At the same time, when splashing occurs during the rotation process, it can be in full contact with the air for air cooling, and can be in full contact with the cooling cylinder during the rotation process, thereby enhancing the cooling effect. On the other hand, two adjacent stator spiral blades can form a guiding groove, and under the action of gravity and friction, the ceramsite begins to move downward. Since it can be in full contact with the cooling cylinder during the movement process, it has a good cooling effect; in the secondary cooling device, the ceramsite enters the cooling pipe through the conical guiding part, and at the same time, spiral conveying blades are arranged in the cooling pipe, which can extend the movement path of the ceramsite in the cooling pipe. The cooling pipe is immersed in the coolant in the coolant tank, so it can fully absorb the heat of the ceramsite, thereby achieving the effect of rapid cooling.

[0011] Preferably, an air outlet pipe is arranged on the cooling cylinder, the air outlet pipe is communicated with the inside of the cooling cylinder, and the air outlet pipe is connected with an air extractor.

[0012] Through the above technical solution, by setting the air outlet pipe and connecting the air outlet pipe with the air extractor, the inside of the cooling cylinder can be in a negative pressure state, so that the high-temperature air can be discharged in time, and at the same time, the air with a lower temperature can be introduced, thereby further cooling the ceramsite.

[0013] Preferably, the number of the stator spiral blades is 3 or 4 or 5 or 6.

[0014] Through the above technical solution, the number of the stator spiral blades can be appropriately selected according to actual needs.

[0015] Preferably, a scraping plate is arranged between two adjacent stator spiral blades, and the scraping plate points to the axis of the cooling cylinder and is parallel to the axis.

[0016] Through the above technical solution, setting the scraping plate can ensure that during the rotation of the rotating framework, the ceramsite can be thrown up by the scraping plate to form a dense material curtain, so that the ceramsite is in full contact with the air for heat exchange, thereby cooling.

[0017] Preferably, the cooling cavity is a spiral pipe uniformly arranged inside the cooling cylinder, and the spiral pipe is connected with the liquid inlet and the liquid outlet.

[0018] Through the above technical solution, setting the spiral pipe can ensure that the temperature distribution of the cooling cylinder is more uniform and can make full use of the cold quantity of the coolant.

[0019] Preferably, at the lower end of the cooling cylinder, a rotary bearing is connected between the rotary framework and the cooling cylinder.

[0020] Through the above technical solution, the rotary framework is relatively fixed to the cooling cylinder.

[0021] Preferably, a stirring shaft is arranged in the coolant tank, stirring blades are arranged on the stirring shaft, and the stirring shaft is connected to a third driving motor for driving.

[0022] Through the above technical solution, the third driving motor can drive the stirring blades to rotate, so that the liquid in the coolant rotates rapidly, thereby enhancing the convective heat transfer between the coolant and the cooling pipe, and thus enhancing the cooling effect.

[0023] Preferably, the included angle between the cooling cylinder and the ground is 5° to 30°.

[0024] Through the above technical solution, selecting an appropriate angle can control the moving speed of the ceramsite in the cooling cylinder, thereby avoiding moving too fast or too slow, so that the ceramsite can be fully cooled.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] (1) By arranging the stator spiral fins and the cooling cylinder is inclined downward, so during the rotation, the stator spiral fins can drive the ceramsite to rotate, and at the same time, splashing occurs during the rotation, so as to be in full contact with the air for air cooling, and during the rotation, it is in full contact with the cooling cylinder, thereby enhancing the cooling effect. On the other hand, two adjacent stator spiral fins can form a guiding groove, and under the action of gravity and friction, the ceramsite starts to move downward. Since it can be in full contact with the cooling cylinder during the movement, it has a good cooling effect;

[0027] (2) In the two-layer cooling device, the ceramsite enters the cooling pipe through the conical guiding part, and at the same time, spiral conveying fins are arranged in the cooling pipe, which can extend the movement path of the ceramsite in the cooling pipe. The cooling pipe is immersed in the coolant in the coolant tank, so it can fully absorb the heat of the ceramsite, thereby achieving the effect of rapid cooling;

[0028] (3) By arranging the air outlet pipe and connecting the air outlet pipe to the air extractor, the inside of the cooling cylinder can be in a negative pressure state, so the high-temperature air can be discharged in time, and at the same time, the air with a lower temperature is introduced, so as to further cool the ceramsite;

[0029] (4) The scraper is arranged to ensure that during the rotation of the rotating framework, the ceramsite can be thrown up by the scraper, thereby forming a dense material curtain, enabling the ceramsite to be in full contact with air for heat exchange, and thus being cooled.

[0030] (5) The third driving motor can drive the stirring blades to rotate, so that the liquid in the coolant tank rotates rapidly, thereby enhancing the convective heat transfer between the coolant and the cooling pipes, and thus enhancing the cooling effect. Description of the Drawings

[0031] Figure 1 is the overall structural schematic diagram of the present invention;

[0032] Figure 2 is the internal structural schematic diagram of the cylindrical barrel in the present invention;

[0033] Figure 3 is the internal structural schematic diagram of the two-layer cooling device in the present invention;

[0034] Figure 4 is the structural schematic diagram of the stirring blades in the present invention.

[0035] In the figure: 1, cooling platform; 2, feed hopper; 3, cooling cylindrical barrel; 4, cooling cavity; 5, coolant; 6, liquid inlet; 7, liquid outlet; 8, coolant circulation system; 9, rotating framework; 10, stator spiral blade; 11, driving shaft; 12, first driving motor; 13, aggregate hopper; 14, coolant tank; 15, conical guiding part; 16, cooling pipe; 17, cooling shaft; 18, spiral conveying blade; 19, gear; 20, chain; 21, second driving motor; 22, collecting hopper; 23, discharge port; 24, air outlet pipe; 25, air extractor; 26, scraper; 27, rotating bearing; 28, stirring shaft; 29, stirring blade; 30, third driving motor. Detailed Embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1-4 , an embodiment provided by the present invention:

[0038] An energy-saving multi-layer ceramsite cooling device includes a cooling platform 1, a feed hopper 2 is arranged on the cooling platform 1, and the feed hopper 2 is connected to a one-layer cooling device.

[0039] The first - stage cooling device includes a cooling cylindrical barrel 3 fixed on the cooling platform 1, and the cooling cylindrical barrel 3 slopes downward. The angle between the cooling cylindrical barrel 3 and the ground is 5° to 30°. Selecting an appropriate angle can control the moving speed of the ceramsite in the cooling cylindrical barrel 3, thus avoiding moving too fast or too slow, so that the ceramsite can be fully cooled.

[0040] An air outlet pipe 24 is arranged on the cooling cylindrical barrel 3. The air outlet pipe 24 is communicated with the inside of the cooling cylindrical barrel 3, and the air outlet pipe 24 is connected with an air extractor 25. By arranging the air outlet pipe 24 and connecting the air outlet pipe 24 with the air extractor 25, the inside of the cooling cylindrical barrel 3 can be in a negative pressure state. Therefore, the high - temperature air can be discharged in time, and at the same time, the air with a lower temperature can be introduced, so as to further cool the ceramsite.

[0041] A cooling cavity 4 is arranged in the cooling cylindrical barrel 3. The cooling cavity 4 is a spiral pipe uniformly arranged inside the cooling cylindrical barrel 3, and the spiral pipe is connected with a liquid inlet 6 and a liquid outlet 7. Arranging the spiral pipe can ensure that the temperature distribution of the cooling barrel is more uniform and can make full use of the cold quantity of the coolant 5.

[0042] The cooling cavity 4 is filled with a coolant 5. The two ends of the cooling cylindrical barrel 3 are respectively provided with a liquid inlet 6 and a liquid outlet 7. The liquid inlet 6 and the liquid outlet 7 are connected with a coolant circulation system 8. A rotating skeleton 9 is rotatably connected inside the cooling cylindrical barrel 3. A plurality of stator spiral blades 10 arranged in parallel are arranged on the rotating skeleton 9, and the number of the stator spiral blades 10 is 3 or 4 or 5 or 6. The number of the stator spiral blades 10 can be appropriately selected according to actual needs.

[0043] A scraping plate 26 is arranged between two adjacent stator spiral blades 10. The scraping plate 26 points to the axis of the cooling cylindrical barrel 3 and is parallel to the axis. Arranging the scraping plate 26 can ensure that during the rotation of the rotating skeleton 9, the ceramsite can be thrown up by the scraping plate 26, thus forming a dense material curtain, so that the ceramsite can be in full contact with the air for heat exchange, and thus be cooled.

[0044] The rotating skeleton 9 is connected with a driving shaft 11, the driving shaft 11 is connected with a first driving motor 12. The lower - positioned end of the cooling cylindrical barrel 3 is connected with a collecting hopper 13, and the collecting hopper 13 is connected with a second - stage cooling device. At the lower - positioned end of the cooling cylindrical barrel 3, a rotating bearing 27 is connected between the rotating skeleton 9 and the cooling cylindrical barrel 3. Thus, the rotating skeleton 9 is relatively fixed to the cooling cylindrical barrel 3.

[0045] Since the inside of the cooling cylinder 3 is filled with flowing coolant 5, the ceramsite can be quickly cooled after contacting the inside of the cooling cylinder 3. At the same time, since the first drive motor 12 can drive the drive shaft 11 to drive the rotating framework 9 to rotate, by setting the stator spiral blades 10 and the cooling cylinder 3 inclined downward, the stator spiral blades 10 can drive the ceramsite to rotate during the rotation process. At the same time, splashing occurs during the rotation process, so that it can be in full contact with the air for air cooling, and it can be in full contact with the cooling cylinder 3 during the rotation process, thereby enhancing the cooling effect. On the other hand, two adjacent stator spiral blades 10 can form a guiding groove. Under the action of gravity and friction, the ceramsite begins to move downward. Since it can be in full contact with the cooling cylinder 3 during the movement process, it has a good cooling effect.

[0046] The second-layer cooling device includes a coolant tank 14 connected below the aggregate hopper 13. The coolant tank 14 is connected to the coolant circulation system 8. A plurality of tube cooling mechanisms are connected to the bottom inside the aggregate hopper 13. The tube cooling mechanism includes a conical guiding part 15 connected to the bottom of the aggregate hopper 13. The conical guiding part 15 is connected with a cooling tube 16. The conical guiding part 15 and the cooling tube 16 are located in the coolant 5. A cooling shaft 17 is arranged inside the cooling tube 16. Spiral conveying blades 18 are arranged on the cooling shaft 17. The end of the cooling shaft 17 is connected with a gear 19 for driving. The gear 19 is connected with a chain 20. The chain 20 is connected with a second drive motor 21 for driving. The bottom of the coolant tank 14 is connected with a receiving hopper 22. A discharge port 23 is arranged on the receiving hopper 22.

[0047] In the second-layer cooling device, the ceramsite enters the cooling tube 16 through the conical guiding part 15. At the same time, spiral conveying blades are arranged in the cooling tube 16, which can extend the movement path of the ceramsite in the cooling tube 16. The cooling tube 16 is immersed in the coolant 5 in the coolant tank 14, so that it can fully absorb the heat of the ceramsite, thereby achieving the effect of rapid cooling.

[0048] A stirring shaft 28 is arranged inside the coolant tank 14. Stirring blades 29 are arranged on the stirring shaft 28. The stirring shaft 28 is connected with a third drive motor 30 for driving. The third drive motor 30 can drive the stirring blades 29 to rotate, so that the liquid in the coolant tank 14 rotates quickly, thereby enhancing the convective heat transfer between the coolant 5 and the cooling tube 16, and enhancing the cooling effect.

[0049] In summary, the beneficial effects of the present invention are as follows: (1) By setting the stator spiral fin 10 and making the cooling cylinder 3 inclined downward, the stator spiral fin 10 can drive the ceramsite to rotate during the rotation process. At the same time, splashing occurs during the rotation process, so that it can be in full contact with the air for air cooling. And during the rotation process, it is in full contact with the cooling cylinder 3, so as to enhance the cooling effect. On the other hand, two adjacent stator spiral fins 10 can form a guiding groove. Under the action of gravity and friction, the ceramsite begins to move downward. Since it can be in full contact with the cooling cylinder 3 during the movement process, it has a good cooling effect; (2) In the two-layer cooling device, the ceramsite enters the cooling pipe 16 through the conical guiding part 15. At the same time, spiral conveying fins are arranged in the cooling pipe 16, which can extend the movement path of the ceramsite in the cooling pipe 16. The cooling pipe 16 is immersed in the coolant 5 in the coolant tank 14, so that the heat of the ceramsite can be fully absorbed, thus achieving the effect of rapid cooling; (3) By setting the air outlet pipe 24 and connecting the air outlet pipe 24 with the air extractor 25, the inside of the cooling cylinder 3 can be in a negative pressure state. Therefore, the high-temperature air can be discharged in time, and at the same time, the air with a lower temperature is introduced, so as to further cool the ceramsite; (4) Setting the scraping plate 26 can ensure that during the rotation process of the rotating framework 9, the ceramsite can be thrown up by the scraping plate 26, so as to form a dense material curtain, making the ceramsite in full contact with the air for heat exchange, so as to carry out cooling; (5) The third driving motor 30 can drive the stirring blade 29 to rotate, so that the liquid in the coolant tank 14 rotates rapidly, thus enhancing the convective heat transfer between the coolant 5 and the cooling pipe 16, and enhancing the cooling effect.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An energy-saving ceramsite multi-layer cooling device, Characterized in that: It includes a cooling platform (1), a feed hopper (2) is arranged on the cooling platform (1), and the feed hopper (2) is connected with a first-layer cooling device; The first-layer cooling device includes a cooling cylindrical barrel (3) fixed on the cooling platform (1), the cooling cylindrical barrel (3) is inclined downward, a cooling cavity (4) is arranged inside the cooling cylindrical barrel (3), a coolant (5) is filled in the cooling cavity (4), a liquid inlet (6) and a liquid outlet (7) are respectively arranged at both ends of the cooling cylindrical barrel (3), the liquid inlet (6) and the liquid outlet (7) are connected with a coolant circulation system (8), a rotating framework (9) is rotatably connected inside the cooling cylindrical barrel (3), a plurality of stator spiral blades (10) arranged in parallel are arranged on the rotating framework (9), the rotating framework (9) is connected with a driving shaft (11), the driving shaft (11) is connected with a first driving motor (12), the lower end of the cooling cylindrical barrel (3) with a lower position is connected with a collecting hopper (13), and the collecting hopper (13) is connected with a second-layer cooling device; The second-layer cooling device includes a coolant tank (14) connected below the collecting hopper (13), the coolant tank (14) is connected with the coolant circulation system (8), a plurality of tube cooling mechanisms are connected to the bottom inside the collecting hopper (13), each tube cooling mechanism includes a conical guiding part (15) connected to the bottom of the collecting hopper (13), the conical guiding part (15) is connected with a cooling tube (16), the conical guiding part (15) and the cooling tube (16) are located in the coolant (5), a cooling shaft (17) is arranged inside the cooling tube (16), spiral conveying blades (18) are arranged on the cooling shaft (17), a gear (19) for driving is connected to the end of the cooling shaft (17), the gear (19) is connected with a chain (20), the chain (20) is connected with a second driving motor (21) for driving, the bottom of the coolant tank (14) is connected with a receiving hopper (22), and a discharge port (23) is arranged on the receiving hopper (22); An air outlet pipe (24) is arranged on the cooling cylindrical barrel (3), the air outlet pipe (24) is communicated with the inside of the cooling cylindrical barrel (3), and the air outlet pipe (24) is connected with an air extractor (25); The number of the stator spiral blades (10) is 3 or 4 or 5 or 6.

2. An energy-saving ceramsite multi-layer cooling device according to claim 1, Characterized in that: A scraping plate (26) is arranged between two adjacent stator spiral blades (10), and the scraping plate (26) points to the axis of the cooling cylindrical barrel (3) and is parallel to the axis.

3. An energy-saving ceramsite multi-layer cooling device according to claim 1, Characterized in that: The cooling cavity (4) is a spiral pipe uniformly arranged inside the cooling cylindrical barrel (3), and the spiral pipe is connected with the liquid inlet (6) and the liquid outlet (7).

4. An energy-saving ceramsite multi-layer cooling device according to claim 1, Characterized in that: At the lower end of the cooling cylindrical barrel (3), a rotating bearing (27) is connected between the rotating framework (9) and the cooling cylindrical barrel (3).

5. An energy-saving multi-layer cooling device for ceramsite according to claim 1, characterized in that: A stirring shaft (28) is arranged in the coolant tank (14), stirring blades (29) are arranged on the stirring shaft (28), and the stirring shaft (28) is connected to a third driving motor (30) for driving.

6. An energy-saving multi-layer cooling device for ceramsite according to claim 1, characterized in that: The included angle between the cooling cylindrical barrel (3) and the ground is 5° to 30°.

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