Quick lime rapid cooling device

Abstract

The utility model relates to the technical field of quicklime production, in particular to a quick quicklime cooling device, which is characterized in that a rotary drum is obliquely arranged, the output end is higher than the input end, and the inner wall of the rotary drum is fixedly connected with a spiral guide plate; the top of the feeding hopper is communicated with the output end of the material conveying device, the bottom of the feeding hopper is fixedly connected with a feeding pipe extending to the input end of the rotary drum, and the output end of the air blower is fixedly connected with an air blowing pipe extending to the output end of the rotary drum. The rotary drum with the output end higher than the input end is arranged, the spiral material guide plate is connected to the inner wall of the rotary drum, the air blower is arranged to blow air to the output end of the rotary drum, materials can be turned over and driven to move towards the output end, and compared with existing vertical falling cooling equipment, the contact heat exchange time of cold air and the materials is prolonged; and the direction of the air blowing pipe is arranged in the spiral direction of the spiral material guide plate, so that the materials can be in full contact with cold air, and the material cooling effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of quicklime production technology, specifically a quicklime rapid cooling device. Background Technology

[0002] Quicklime, also known as calcined lime, is mainly composed of calcium oxide. It is typically produced by calcining natural rocks, primarily composed of calcium carbonate, at high temperatures, which decomposes them into carbon dioxide and calcium oxide. Any natural rock with calcium carbonate as its main component, such as limestone, chalk, and dolomitic limestone, can be used to produce lime. After calcination, quicklime needs to be cooled during production. Current methods for cooling quicklime typically involve natural cooling or air cooling. Natural cooling takes a long time, while air cooling equipment usually has a vertical tower structure where hot lime falls vertically from top to bottom and is cooled by cold air. However, the contact time between the cold air and the lime is short, resulting in unsatisfactory cooling effects. Therefore, there is a need to develop a rapid cooling device for quicklime with better cooling performance. Utility Model Content

[0003] To address the above technical problems, this utility model provides a rapid cooling device for quicklime with good cooling effect, thereby solving the problem that the existing quicklime air-cooling cooling devices have unsatisfactory cooling effect.

[0004] To solve the above-mentioned technical problems, the present invention provides a quicklime rapid cooling device, comprising a rotating drum and a support frame. The rotating drum is rotatably connected to the support frame and is driven to rotate by a motor. The rotating drum is inclined and its output end is higher than its input end. A spiral guide plate is fixedly connected to the inner wall of the rotating drum. The distance between the spiral guide plates from the input end to the output end of the rotating drum gradually decreases. A feeding hopper is provided at the input end of the rotating drum, and a receiving hopper is provided at the output end. The top of the feeding hopper is connected to the output end of a material conveying device, and a feeding pipe extending to the input end of the rotating drum is fixedly connected to the bottom. A blowing pipe extending to the output end of the rotating drum is fixedly connected to the output end of a blower, and the end of the blowing pipe is inclined along the spiral direction of the spiral guide plate.

[0005] Furthermore, an inclined outer cylinder is fixedly connected to the bracket, and two roller frames are fixedly connected to both ends of the bottom of the outer cylinder. A rotating roller is rotatably connected to the roller frame, and roller grooves are fixedly connected to both ends of the outer side of the rotating cylinder. The rotating roller is rolled and locked in the roller groove.

[0006] Furthermore, the motor is fixedly connected to the bottom of the outer cylinder, a rotating shaft is fixedly connected to the output end of the motor, a gear ring is fixedly connected to the outside of the rotating cylinder, and a gear is fixedly connected to the rotating shaft, with the gear meshing with the gear ring.

[0007] Furthermore, a spiral circulation pipe is fixedly connected to the inner wall of the outer cylinder, and the input and output ends of the circulation pipe pass through the outer cylinder.

[0008] Furthermore, mounting plates are fixedly connected to both sides of the receiving hopper, springs are fixedly connected to the mounting plates, a screen plate is fixedly connected to the upper end of the springs, the rotating shaft passes through the receiving hopper and is fixedly connected to an eccentric wheel, and the eccentric wheel is in contact with the lower surface of the screen plate.

[0009] Furthermore, a dust cover is fixedly connected above the receiving hopper.

[0010] Furthermore, an exhaust fan is fixedly connected to the outer cylinder, and the exhaust fan is fixedly connected to an exhaust pipe extending into the rotating cylinder. The exhaust pipe is inclined along the spiral direction of the spiral guide plate.

[0011] This utility model has the following advantages compared with the prior art:

[0012] 1. This utility model features a rotating drum with its output end higher than its input end, and a spiral guide plate connected to the inner wall of the drum. The drum is driven to rotate by a motor, and a blower blows air from the output end of the drum, which can tumble the material and move it towards the output end. Compared with current vertical drop cooling equipment, this increases the contact time between the cold air and the material, thus improving the heat exchange efficiency. By setting the direction of the blower pipe along the spiral direction of the spiral guide plate, the material can fully contact the cold air, improving the cooling effect of the material.

[0013] 2. This utility model, by setting an outer cylinder and a circulation pipe on the inner wall of the outer cylinder, and circulating water in the circulation pipe, can use cold water to reduce the internal temperature of the equipment, improve the material cooling efficiency, and at the same time recover waste heat and use the hot water for normal production and life in the workshop.

[0014] 3. This utility model can prevent the production environment from being polluted by connecting a dust cover above the receiving hopper; by using a spring to connect the screen plate inside the receiving hopper and extending the rotating shaft into the receiving hopper and connecting an eccentric wheel, the eccentric wheel can drive the screen plate to vibrate, thus preventing the material from clumping due to a sudden drop in temperature. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the rotating drum.

[0017] Figure 3 for Figure 1 A magnified view of a portion of region A in the middle.

[0018] In the diagram: 1. Outer cylinder, 2. Rotary drum, 3. Roller groove, 4. Rotary roller, 5. Motor, 6. Gear ring, 7. Gear, 8. Spiral guide plate, 9. Collection hopper, 10. Screen plate, 11. Spring, 12. Mounting plate, 13. Eccentric wheel, 14. Blower, 15. Blower pipe, 16. Dust cover, 17. Feeding hopper, 18. Feeding pipe, 19. Exhaust fan, 20. Exhaust pipe, 21. Circulation pipe, 22. Roller frame, 23. Rotating shaft, 24. Material conveying device, 25. Support. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1-3 The quicklime rapid cooling device shown includes a rotating drum 2 and a support 25. The rotating drum 2 is rotatably connected to the support 25 and is driven to rotate by a motor 5. The rotating drum 2 is inclined and its output end is higher than its input end. A spiral guide plate 8 is fixedly connected to the inner wall of the rotating drum 2. In order to ensure stable material output and cooling efficiency, the spacing between the spiral guide plates 8 gradually decreases from the input end to the output end of the rotating drum 2. A feeding hopper 17 is provided at the input end of the rotating drum 2 and a receiving hopper 9 is provided at the output end. The top of the feeding hopper 17 is connected to the output end of the material conveying device 24, and the bottom is fixedly connected to a feeding pipe 18 extending to the input end of the rotating drum 2. A blower 14 is fixedly connected to a blower pipe 15 extending to the output end of the rotating drum 2. The end of the blower pipe 15 is inclined along the spiral direction of the spiral guide plate 8, so that the blown air moves in the opposite direction to the material running direction, increasing the heat exchange time between the cold air and the material and improving the cooling efficiency. It should be noted that in this embodiment, the blower 14 can be a cold air generator to provide cooler air to cool the material; at the same time, in order to ensure uniform material conveying, a gate valve is connected to the feeding pipe 18; the discharge port at the lower end of the receiving hopper 9 is connected to a conveying device to convey the cooled material to the next process.

[0021] The working process of this embodiment is as follows: The material is conveyed into the feeding hopper 17 by the material conveying device 24. The gate valve is activated, and the material enters the rotating drum 2 from the feeding pipe 18. The motor 5 and the blower 14 are started at the same time. The motor 5 drives the rotating drum 2 to rotate. Under the action of the spiral guide plate 8, the material can be fully turned over and pushed to move towards the output end. The air blown out by the blower 14 moves along the spiral groove formed by the spiral guide plate 8 and cools the material after it comes into full contact with it.

[0022] In order to support the rotating drum 2 and drive it to rotate stably, an inclined outer drum 1 is fixedly connected to the bracket 25. Two roller frames 22 are fixedly connected to both ends of the bottom of the outer drum 1. Roller 4 is rotatably connected to the roller frame 22 through bearings and rotating shafts. The two rollers 4 located on the same side provide stable support for one end of the rotating drum 2. Roller grooves 3 are fixedly connected to both ends of the outer side of the rotating drum 2. The roller 4 is rolled and locked in the roller grooves 3.

[0023] The working process of this embodiment is as follows: During the rotation of the drum 2, the rotating roller 4 supports the drum 2 and rotates synchronously with the drum 2 to reduce the friction during the rotation of the drum 2.

[0024] In order to drive the rotating drum 2 to achieve stable rotation, the bottom of the outer drum 1 is fixedly connected to the motor 5 by the connecting frame and bolts. The output end of the motor 5 is fixedly connected to the rotating shaft 23. The outer side of the rotating drum 2 is fixedly connected to the gear ring 6. The rotating shaft 23 is fixedly connected to the gear 7, and the gear 7 and the gear ring 6 mesh with each other.

[0025] The working process of this embodiment is as follows: When the motor 5 is running, it drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives the gear 7 to rotate. Under the meshing action, the gear 7 drives the gear ring 6 to rotate, which in turn drives the rotating drum 2 to achieve stable rotation.

[0026] To improve material cooling efficiency using water cooling and simultaneously recover waste heat, a spiral-structured circulation pipe 21 is fixedly connected to the inner wall of the outer cylinder 1. The inlet end of the circulation pipe 21 is connected to a water tank, and the outlet end is connected to a hot water collection tank. It should be noted that, in this embodiment, to ensure rapid heating of the circulating water within the circulation pipe 21, the rotating cylinder 2 is provided with a fine mesh. The mesh openings prevent material from falling, while hot air can pass through the mesh to enhance the heating efficiency of the circulation pipe 21.

[0027] The working process of this embodiment is as follows: a water pump is used to pump circulating water from the water tank into the circulating pipe 21. High-temperature gas heats the water in the circulating pipe 21, which can improve the cooling efficiency of the equipment. At the same time, the hot water can be used for normal production and life in the workshop, realizing the full utilization of resources.

[0028] In order to shake and screen the cooled material to prevent it from clumping, mounting plates 12 are fixedly connected to both sides of the receiving hopper 9. Springs 11 are fixedly connected to the mounting plates 12. Screen plates 10 are fixedly connected to the upper end of the springs 11. The rotating shaft 23 passes through the receiving hopper 9 and is fixedly connected to an eccentric wheel 13. The eccentric wheel 13 is in contact with the lower surface of the screen plate 10.

[0029] The working process of this embodiment is as follows: the motor 5 drives the rotating shaft 23 to rotate, which in turn drives the eccentric wheel 13 to rotate. The eccentric wheel 13 drives the screen plate 10 to vibrate, thereby achieving material screening while preventing it from clumping.

[0030] To protect the production environment and prevent dust from escaping, a dust cover 16 is fixedly connected above the receiving hopper 9.

[0031] In order to improve the cooling efficiency and effect, an exhaust fan 19 is fixedly connected to the outer cylinder 1. The exhaust fan 19 is fixedly connected to an exhaust pipe 20 extending into the rotating cylinder 2. The exhaust pipe 20 is inclined along the spiral direction of the spiral guide plate 8.

[0032] The working process of this embodiment is as follows: During the material cooling process, the exhaust fan 19 is started and runs, and the exhaust fan 19 quickly extracts the hot air that has been blown out.

[0033] The working principle of this embodiment is as follows:

[0034] During the cooling process of quicklime, the material is conveyed to the feeding hopper 17 by the material conveying device 24 and enters the rotating drum 2. The motor 5 drives the rotating drum 2 to rotate. Under the action of the spiral guide plate 8, the material is moved and turned at the same time, which increases the heat exchange time between the cold air and the material. The blower 14 blows air from the output end of the rotating drum to the input end to cool the material. The exhaust fan 19 extracts hot air to improve the cooling efficiency. The circulation pipe 21 can absorb the heat in the equipment to realize the recovery and reuse of waste heat. The cooled material enters the receiving hopper 9. Under the action of the eccentric wheel 13, the screen plate 10 vibrates, which screens the material and prevents the material from agglomerating.

Claims

1. A rapid cooling device for quicklime, comprising a rotating drum (2) and a support (25), wherein the rotating drum (2) is rotatably connected to the support (25), and the rotating drum (2) is driven to rotate by a motor (5), characterized in that: The rotating drum (2) is inclined and the output end is higher than the input end. A spiral guide plate (8) is fixedly connected to the inner wall of the rotating drum (2). The distance between the spiral guide plate (8) from the input end to the output end of the rotating drum (2) gradually decreases. A feeding hopper (17) is provided at the input end of the rotating drum (2) and a receiving hopper (9) is provided at the output end. The top of the feeding hopper (17) is connected to the output end of the material conveying device (24), and a feeding pipe (18) extending to the input end of the rotating drum (2) is fixedly connected to the bottom. A blowing pipe (15) extending to the output end of the blowing pipe (14) is fixedly connected to the output end of the rotating drum (2). The end of the blowing pipe (15) is inclined along the spiral direction of the spiral guide plate (8).

2. The quicklime rapid cooling device according to claim 1, characterized in that: An inclined outer cylinder (1) is fixedly connected to the bracket (25). Two roller frames (22) are fixedly connected to both ends of the bottom of the outer cylinder (1). A rotating roller (4) is rotatably connected to the roller frame (22). Roller grooves (3) are fixedly connected to both ends of the outer side of the rotating cylinder (2). The rotating roller (4) is rolled and locked in the roller groove (3).

3. The quicklime rapid cooling device according to claim 2, characterized in that: The motor (5) is fixedly connected to the bottom of the outer cylinder (1), and the output end of the motor (5) is fixedly connected to the rotating shaft (23). A gear ring (6) is fixedly connected to the outside of the rotating cylinder (2), and a gear (7) is fixedly connected to the rotating shaft (23). The gear (7) meshes with the gear ring (6).

4. The quicklime rapid cooling device according to claim 2, characterized in that: The inner wall of the outer cylinder (1) is fixedly connected to a spiral circulation pipe (21), and the input and output ends of the circulation pipe (21) pass through the outer cylinder (1).

5. The quicklime rapid cooling device according to claim 3, characterized in that: The receiving hopper (9) is fixedly connected to two sides of the mounting plate (12), and a spring (11) is fixedly connected to the mounting plate (12). A screen plate (10) is fixedly connected to the upper end of the spring (11). The rotating shaft (23) passes through the receiving hopper (9) and is fixedly connected to an eccentric wheel (13). The eccentric wheel (13) is in contact with the lower surface of the screen plate (10).

6. The quicklime rapid cooling device according to claim 1, characterized in that: A dust cover (16) is fixedly connected above the receiving hopper (9).

7. The quicklime rapid cooling device according to claim 2, characterized in that: A blower (19) is fixedly connected to the outer cylinder (1), and a blower (19) is fixedly connected to a blower pipe (20) extending into the rotating cylinder (2). The blower pipe (20) is inclined along the spiral direction of the spiral guide plate (8).

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