High-temperature coal cinder grading screening and waste heat recovery device

Abstract

The utility model discloses a high temperature coal cinder grading screening and waste heat recovery device relates to the field of waste heat recovery, including mounting seat, the mounting seat is rotationally installed with the barrel, rotationally installed with first filter section, second filter section and third filter section in the barrel, the first filter section is formed heat exchange cavity with the barrel, a plurality of heat exchange pipes are fixedly installed with annular array mode in the heat exchange cavity, all are seted up with the water storage cavity in the barrel two side walls, effectively solved the part of the large coal cinder and has not burnt completely and discharged, and the coal cinder that burns completely can be used for doing the building brick's mixture, cannot utilize the waste of recycling to cause, and the existing coal cinder waste heat recovery device is difficult to realize the technical problem of the coal cinder screening while completing the coal cinder waste heat recovery.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery, specifically a high-temperature coal slag grading and screening and waste heat recovery device. Background Technology

[0002] Coal slag, a waste product generated by industrial combustion equipment, is currently mainly disposed of through natural cooling or landfill. This not only wastes resources but also causes secondary pollution, seriously occupies land resources and pollutes the ecological environment, increasing the production costs of enterprises and hindering the development of a circular economy.

[0003] Furthermore, some large pieces of coal ash are discharged before they are fully burned. The burned coal ash can be used as a raw material for building bricks, but it cannot be recycled, resulting in waste. Moreover, the existing coal ash waste heat recovery devices are unable to simultaneously recover waste heat from the coal ash and screen it. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-temperature coal slag grading and screening and waste heat recovery device, which solves the technical problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature coal slag grading and screening and waste heat recovery device, comprising a mounting base; a barrel is rotatably mounted on the mounting base, and a first filter cylinder, a second filter cylinder, and a third filter cylinder are rotatably mounted inside the barrel. A heat exchange chamber is formed between the third filter cylinder and the barrel, and a plurality of heat exchange tubes are fixedly installed in a ring array inside the heat exchange chamber. Water storage chambers are provided in the inner walls of both sides of the barrel, and the plurality of heat exchange tubes are all connected to the water storage chambers. A slag inlet pipe is fixedly connected to the first filter cylinder, and a first slag discharge pipe, a second slag discharge pipe, and a third slag discharge pipe are fixedly connected to the first, second, and third filter cylinders, respectively. The other ends of the first, second, and third slag discharge pipes all extend through the water storage chamber to the outside of the barrel.

[0006] Preferably, a motor is fixedly mounted on the side plate of the mounting base, the drive end of the motor passes through the side plate and a gear is fixedly mounted thereon, a gear ring that meshes with the gear is rotatably mounted on the side plate, the gear ring is fixedly connected to the barrel body, and a fixing cylinder is fixedly connected between the side plate and the barrel body.

[0007] Preferably, a water inlet pipe is fixedly connected to the top of the barrel, and a drain pipe is fixedly connected to the bottom of the barrel. Both the water inlet pipe and the drain pipe are connected to the water storage chamber.

[0008] Preferably, a smoke exhaust pipe is fixedly connected to the top of the barrel.

[0009] Preferably, a support frame is installed at the bottom of the barrel.

[0010] Preferably, the mesh size of the first filter cartridge, the second filter cartridge, and the third filter cartridge increases sequentially.

[0011] Beneficial effects

[0012] This utility model provides a high-temperature coal slag grading and screening and waste heat recovery device, which has the following beneficial effects:

[0013] 1. The barrel can be installed on the mounting base, allowing for heat exchange and screening of coal slag within the barrel. A first, second, and third filter cylinder enable graded filtration of the coal slag. A heat exchange chamber allows for the installation of heat exchange tubes for heat exchange. A water storage chamber allows water to flow into the heat exchange tubes for further heat exchange. A slag inlet pipe allows coal slag to be introduced into the first filter cylinder for primary filtration. After primary filtration, large pieces of coal slag remain in the first filter cylinder, while the remaining coal slag passes through the first... The coal slag enters the second filter cartridge, where it undergoes secondary filtration. Smaller diameter slag passes through the second filter cartridge and enters the third filter cartridge, which has the largest mesh size, ensuring that all coal powder is retained within it. During the graded filtration process, the coal powder releases heat as it rotates, which is then transferred to the heat exchange tubes for heat exchange. The slag in the first, second, and third filter cartridges is discharged through the first, second, and third slag discharge pipes, respectively, facilitating separate collection and recycling of slag of different diameters using different methods. Attached Figure Description

[0014] Figure 1 This is a front view of the internal structure of this utility model.

[0015] In the diagram: 1. Mounting base; 2. Barrel body; 3. First filter cylinder; 4. Second filter cylinder; 5. Third filter cylinder; 6. Water storage chamber; 7. Heat exchange chamber; 8. Heat exchange tube; 9. Slag inlet pipe; 10. Exhaust pipe; 11. Fixed cylinder; 12. Motor; 13. Gear; 14. Gear ring; 15. First slag discharge pipe; 16. Second slag discharge pipe; 17. Third slag discharge pipe; 18. Drain pipe; 19. Water inlet pipe; 20. Support frame; 21. Alarm plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Wherein, directional terms such as "upper" and "lower" mentioned herein are used in conjunction with... Figure 1 The orientation is used as a reference.

[0017] Please see Figure 1 This utility model provides a technical solution: a high-temperature coal slag grading and screening and waste heat recovery device, including a mounting base 1; a barrel 2 is rotatably mounted on the mounting base 1, and a first filter cylinder 3, a second filter cylinder 4 and a third filter cylinder 5 are rotatably mounted inside the barrel 2. A heat exchange chamber 7 is formed between the first filter cylinder 3 and the barrel 2. Several heat exchange tubes 8 are fixedly installed in a ring array inside the heat exchange chamber 7. Water storage chambers 6 are opened in both side walls of the barrel 2. The several heat exchange tubes 8 are all connected to the water storage chambers 6. A slag inlet pipe 9 is fixedly connected to the first filter cylinder 3. A first slag discharge pipe 15, a second slag discharge pipe 16 and a third slag discharge pipe 17 are fixedly connected to the first filter cylinder 3, the second filter cylinder 4 and the third filter cylinder 5, respectively. The other end of the first slag discharge pipe 15, the second slag discharge pipe 16 and the third slag discharge pipe 17 extends through the water storage chamber 6 to the outside of the barrel 2. A lever 21 is fixedly installed inside the first filter cylinder 3 and the second filter cylinder 4.

[0018] The barrel 2 can be mounted on the mounting base 1. The barrel 2 allows for heat exchange and screening of coal slag. The first filter cylinder 3, second filter cylinder 4, and third filter cylinder 5 enable graded filtration of the coal slag. A heat exchange chamber 7 allows for the installation of heat exchange tubes 8 for heat exchange. A water storage chamber 6 allows water to flow into the heat exchange tubes 8 for further heat exchange. A slag inlet pipe 9 allows coal slag to be introduced into the first filter cylinder 3 for primary filtration. After primary filtration, large pieces of coal slag remain in the first filter cylinder 3, while the remaining coal slag passes through the first filter cylinder 3 and enters the second filter cylinder 4 for further filtration. A second filter cylinder 4 is installed for secondary filtration of coal slag. Coal slag with smaller diameters can pass through the second filter cylinder 4 and then enter the third filter cylinder 5. The third filter cylinder 5 has the largest mesh size, so that all coal powder can be retained in the third filter cylinder 5. During the grading and screening of coal slag, a baffle plate 21 is installed so that the barrel 2 rotates and drives the coal powder to rotate. The coal powder dissipates heat during rotation, which can be transferred to the heat exchange tube 8 for heat exchange. The coal slag in the first filter cylinder 3, the second filter cylinder 4 and the third filter cylinder 5 are discharged through the first slag discharge pipe 15, the second slag discharge pipe 16 and the third slag discharge pipe 17, respectively, so as to facilitate the screening and separate collection of coal slag and the recycling of coal slag of different diameters in different ways.

[0019] Furthermore, a motor 12 is fixedly installed on the side plate of the mounting base 1. The drive end of the motor 12 passes through the side plate and a gear 13 is fixedly installed thereon. A gear ring 14 that meshes with the gear 13 is rotatably installed on the side plate. The gear ring 14 is fixedly connected to the barrel 2. A fixing cylinder 11 is fixedly connected between the side plate and the barrel 2.

[0020] The motor 12 is installed, and when the motor 12 is started, it drives the gear 13 to rotate. The gear 13 meshes with the gear ring 14, which in turn drives the gear ring 14 to rotate, thereby driving the barrel 2 to rotate.

[0021] Furthermore, a water inlet pipe 19 is fixedly connected to the top of the barrel 2, and a drain pipe 18 is fixedly connected to the bottom of the barrel 2. Both the water inlet pipe 19 and the drain pipe 18 are connected to the water storage chamber 6.

[0022] Water can be introduced into the water storage chamber 6 through the water inlet pipe 19, and water in the water storage chamber 6 can be discharged from the barrel 2 through the drain pipe 18.

[0023] Furthermore, a smoke exhaust pipe 10 is fixedly connected to the top of the barrel 2. By connecting the smoke exhaust pipe 10, the gas inside the barrel 2 can be discharged through the smoke exhaust pipe 10.

[0024] Furthermore, a support frame 20 is installed at the bottom of the barrel 2, which can support the barrel 2.

[0025] Furthermore, the mesh size of the first filter cylinder 3, the second filter cylinder 4, and the third filter cylinder 5 increases sequentially, thereby allowing for graded filtration of the coal slag.

[0026] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0027] The working principle and usage process of this utility model are as follows: In use, the burned coal ash is fed into the first filter cylinder 3 through the ash inlet pipe 9. The motor 12 is started, and the drive end of the motor 12 rotates, driving the gear 13 to rotate. The gear 13 meshes with the gear ring 14, driving the gear ring 14 to rotate, thereby rotating the barrel body 2, which in turn drives the first filter cylinder 3, the second filter cylinder 4, and the third filter cylinder 5 to rotate. After the coal ash is filtered and screened by the first filter cylinder 3, large pieces of coal ash remain in the first filter cylinder 3, while the remaining coal ash enters the second filter cylinder 4 for further processing. Filtration continues. After filtration through the second filter cylinder 4, larger coal slags remain in the second filter cylinder 4, while smaller coal slags pass through the second filter cylinder 4 and enter the third filter cylinder 5 for storage. The coal slags in the first filter cylinder 3, the second filter cylinder 4, and the third filter cylinder 5 can be discharged from the barrel 2 through the first slag discharge pipe 15, the second slag discharge pipe 16, and the third slag discharge pipe 17, respectively. The heat emitted by the coal slags during the rotation of the barrel 2, i.e., the high-temperature flue gas, can be transferred to the heat exchange chamber 7, so that the heat exchange tube 8 can exchange heat. The flue gas after heat exchange can be discharged from the barrel 2 through the exhaust pipe 10.

[0028] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature coal slag grading and screening and waste heat recovery device, characterized in that, Includes a mounting base (1); a barrel (2) is rotatably mounted on the mounting base (1), and a first filter cylinder (3), a second filter cylinder (4), and a third filter cylinder (5) are rotatably mounted inside the barrel (2). A heat exchange chamber (7) is formed between the third filter cylinder (5) and the barrel (2). Several heat exchange tubes (8) are fixedly installed in a ring array inside the heat exchange chamber (7). Water storage chambers (6) are opened in both side walls of the barrel (2). The several heat exchange tubes (8) are connected to the barrel (2). The water storage chamber (6) is connected to each other. A slag inlet pipe (9) is fixedly connected to the first filter cylinder (3). A first slag discharge pipe (15), a second slag discharge pipe (16), and a third slag discharge pipe (17) are fixedly connected to the first filter cylinder (3), the second filter cylinder (4), and the third filter cylinder (5), respectively. The other end of the first slag discharge pipe (15), the second slag discharge pipe (16), and the third slag discharge pipe (17) all penetrate the water storage chamber (6) and extend to the outside of the barrel body (2).

2. The high-temperature coal slag grading and waste heat recovery device according to claim 1, characterized in that, A motor (12) is fixedly installed on the side plate of the mounting base (1). The drive end of the motor (12) passes through the side plate and is fixedly installed with a gear (13). A gear ring (14) that meshes with the gear (13) is rotatably installed on the side plate. The gear ring (14) is fixedly connected to the barrel body (2). A fixing cylinder (11) is fixedly connected between the side plate and the barrel body (2).

3. The high-temperature coal slag grading and waste heat recovery device according to claim 1, characterized in that, The top of the barrel (2) is fixedly connected to a water inlet pipe (19), and the bottom of the barrel (2) is fixedly connected to a drain pipe (18). Both the water inlet pipe (19) and the drain pipe (18) are connected to the water storage chamber (6).

4. The high-temperature coal slag grading and waste heat recovery device according to claim 1, characterized in that, The top of the barrel (2) is fixedly connected to a smoke exhaust pipe (10).

5. The high-temperature coal slag grading and waste heat recovery device according to claim 1, characterized in that, A support frame (20) is installed at the bottom of the barrel (2).

6. The high-temperature coal slag grading and waste heat recovery device according to claim 1, characterized in that, The mesh size of the first filter cartridge (3), the second filter cartridge (4), and the third filter cartridge (5) increases sequentially.

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