Double-layer roller slag cooler

Abstract

The utility model discloses a double-layer roller slag cooler, which relates to the technical field of slag coolers, and comprises a base, a pair of limiting rings are fixedly mounted on the base through a support rod I, an outer cylinder capable of freely rotating is mounted in the pair of limiting rings, and an inner cylinder is fixedly mounted in the outer cylinder through a plurality of connecting rods; a gap for slag to pass through is reserved between one end of the inner cylinder and one end of the outer cylinder, a plurality of spiral guide plates I are fixedly arranged on the inner wall surface of the outer cylinder, a plurality of spiral guide plates II are fixedly arranged on the inner wall surface of the inner cylinder, and the inclination directions of the spiral guide plates I and the spiral guide plates II are opposite. And the spiral guide plates are respectively arranged in the outer cylinder and the inner cylinder, so that the flowing distance of slag is increased, the residence time of the slag in the cylinders is prolonged, the contact time of the slag and a refrigerant is prolonged, and the cooling effect is improved under the condition of reducing the occupied area.

Description

Technical Field

[0001] The utility model relates to the technical field of slag coolers, in particular to a double-layer drum slag cooler. Background Art

[0002] During production, boilers generate a large amount of high-temperature slag. To ensure safety and avoid thermal pollution, the slag needs to be cooled. Currently, the drum slag cooler is a very important boiler slag removal device. It has good slag cooling effect and large processing capacity. It is widely used for boiler slag removal in power plant boilers or solid fuel pyrolysis gasification industries.

[0003] However, most existing slag coolers are single-drum structures, and the slag movement distance is short, resulting in a shorter contact time between the slag and the refrigerant. In order to improve the cooling effect, the only way is to change the drum length or increase the number, which greatly increases the occupied space of the site and has poor performance. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a double-layer drum slag cooler to solve the problems raised in the above background technology.

[0005] The cam is fixedly provided with a base, and a pair of limit rings are fixedly mounted on the base through a support rod, and an outer cylinder which can be freely rotated is installed in the pair of limit rings. The outer cylinder is fixedly mounted with an inner cylinder through a plurality of connecting rods, and a gap for slag to pass through is left between one end of the inner cylinder and one end of the outer cylinder. The inner wall surface of the outer cylinder is fixedly provided with a plurality of spiral guide plates 1, and the inner wall surface of the inner cylinder is fixedly provided with a plurality of spiral guide plates 2, and the spiral guide plates are inclined in opposite directions to the spiral guide plates 2. The end cover is fixedly provided with an end cover on the base through a support rod 2, and the inner cylinder and the outer cylinder are rotatably connected to the end cover and can block the other ends of the two.

[0006] Preferably, fans are installed on both the feed pipe and the discharge pipe.

[0007] Preferably, a gear ring is fixedly provided on the outer wall of the outer cylinder, a motor is fixedly mounted on the base, and a gear meshing with the gear ring is fixedly mounted on the power output end of the motor.

[0008] Preferably, a plurality of scrapers are fixedly provided on the inner wall surfaces of the outer cylinder and the inner cylinder.

[0009] Preferably, a sealing plate is detachably connected to one end of the outer cylinder.

[0010] Beneficial effects

[0011] The utility model provides a double-layer drum slag cooler with the following beneficial effects: the device increases the flow distance of the slag and the residence time of the slag in the drum by arranging an inner drum in the outer drum and arranging spiral guide plates in the outer drum and the inner drum respectively, thereby increasing the contact time between the slag and the refrigerant, and improving the cooling effect while reducing the footprint. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the main internal structure diagram of the utility model;

[0013] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0014] Figure 3 It is a side view of the inner and outer cylinders.

[0015] In the figure: 1. Base; 2. Support rod 1; 3. Limiting ring; 4. Outer cylinder; 5. Connecting rod; 6. Inner cylinder; 7. Support rod 2; 8. End cover; 9. Inclined tube; 10. Feed pipe; 11. Exhaust pipe; 12. Discharge pipe; 13. Inlet pipe; 14. Fan off; 15. Motor; 16. Gear; 17. Ring gear; 18. Spiral guide plate 1; 19. Spiral guide plate 2; 20. Scraper; 21. Sealing plate. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] See also Figure 1-3 The utility model provides a technical solution: a double-drum slag cooling machine, including a base 1, a pair of limit rings 3 are fixedly installed on the base 1 through a support rod 1, and an outer cylinder 4 that can rotate freely is installed in the pair of limit rings 3, and an inner cylinder 6 is fixedly installed in the outer cylinder 4 through a plurality of connecting rods 5. A gap for slag to pass through is left between one end of the inner cylinder 6 and one end of the outer cylinder 4. A plurality of spiral guide plates 18 are fixedly provided on the inner wall surface of the outer cylinder 4, and a plurality of spiral guide plates 2 19 are fixedly provided on the inner wall surface of the inner cylinder 6. The spiral guide plates 18 and the spiral guide plates 2 19 are inclined in opposite directions. An end cover 8 is fixedly provided on the base 1 through a support rod 2 7, and the inner cylinder 6 and the outer cylinder 4 are rotatably connected to the end cover 8 and can block the other ends of the two. An inclined pipe 9 connected to the inner cylinder 6 is fixedly provided at the center of the end cover 8. A feed pipe 10 and an exhaust pipe 11 are fixedly connected to the inclined pipe 9, and the end cover 8 is connected to a discharge pipe 12 and an air intake pipe 13 connected to the outer cylinder 4.

[0018] As an embodiment of the present invention, fans 14 are installed on the feed pipe 10 and the discharge pipe 12 to prevent gas from escaping through the feed pipe 10 and the discharge pipe 12 .

[0019] As an embodiment of the present invention, a gear ring 17 is fixedly provided on the outer wall of the outer cylinder 4, a motor 15 is fixedly installed on the base 1, and a gear 16 meshing with the gear ring 17 is fixedly installed on the power output end of the motor 15. Starting the motor 15 can drive the outer cylinder 4 to rotate.

[0020] As an embodiment of the present invention, a plurality of scrapers 20 are fixedly provided on the inner wall surfaces of the outer tube 4 and the inner tube 6 , and the slag can be moved by the scrapers 20 .

[0021] As an embodiment of the present invention, a sealing plate 21 is detachably connected to one end of the outer cylinder 4 , and after the sealing plate 21 is removed, the interior of the outer cylinder 4 can be maintained.

[0022] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0023] The working principle and usage process of the present invention are as follows: when in use, the slag enters the inner tube 6 through the feed pipe 10 and the inclined tube 9, the air inlet pipe 13 is connected to the fan (not shown in the figure), and the exhaust pipe 11 is connected to the gas purification device (not shown in the figure). By starting the motor 15, the outer tube 4 and the inner tube 6 can be rotated, and the slag can be transported to the side away from the inclined tube 9 through the spiral guide plate 19. The slag falls into the outer tube 4 through the gap between the inner tube 6 and one end of the outer tube 4, and can be transported to the side of the end cover 8 through the spiral guide plate 18, and finally discharged through the discharge pipe 12 connected to the end cover 8. When the outer tube 4 rotates, starting the fan can inject cold air into the outer tube 4 through the air inlet pipe 13, and the cold air is used to cool the slag in the outer tube 4 and the inner tube 6. Finally, the heated air is discharged through the inclined tube 9 and the exhaust pipe 11. By turning off the fan 14, the gas can be prevented from escaping through the feed pipe 10 and the discharge pipe 12.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-drum slag cooler, characterized in that: The invention comprises a base (1), a pair of limiting rings (3) are fixedly mounted on the base (1) via a supporting rod (2), an outer cylinder (4) capable of rotating freely is mounted in the pair of limiting rings (3), an inner cylinder (6) is fixedly mounted in the outer cylinder (4) via a plurality of connecting rods (5), a gap for slag to pass through is left between one end of the inner cylinder (6) and one end of the outer cylinder (4), a plurality of spiral guide plates (18) are fixedly mounted on the inner wall surface of the outer cylinder (4), a plurality of spiral guide plates (19) are fixedly mounted on the inner wall surface of the inner cylinder (6), and the spiral guide plates (1) are fixedly mounted on the inner wall surface of the inner cylinder (6). (18) is opposite to the inclination direction of the spiral guide plate 2 (19), and an end cover (8) is fixedly provided on the base (1) through the support rod 2 (7), and the inner cylinder (6) and the outer cylinder (4) are rotatably connected to the end cover (8) and can block the other ends of the two, and an inclined tube (9) connected to the inner cylinder (6) is fixedly provided at the center of the end cover (8), and a feed pipe (10) and an exhaust pipe (11) are fixedly connected to the inclined tube (9), and the end cover (8) is connected to a discharge pipe (12) and an air inlet pipe (13) connected to the outer cylinder (4).

2. A double-drum slag cooler according to claim 1, characterized in that: The feed pipe (10) and the discharge pipe (12) are both equipped with fans (14).

3. The double-drum slag cooler according to claim 1, characterized in that: A gear ring (17) is fixedly provided on the outer wall of the outer cylinder (4), a motor (15) is fixedly installed on the base (1), and a gear (16) meshing with the gear ring (17) is fixedly installed on the power output end of the motor (15).

4. The double-drum slag cooler according to claim 1, characterized in that: A plurality of scrapers (20) are fixedly provided on the inner wall surfaces of the outer cylinder (4) and the inner cylinder (6).

5. The double-drum slag cooler according to claim 1, characterized in that: One end of the outer cylinder (4) is detachably connected to a blocking plate (21).

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